Dell just announced a new 10" laptop w/ integrated GPS, the Dell "Mini".  I haven't tried it, but this would work great with the new keyboard support added to Overland Navigator.  Engadget did a review at http://www.engadget.com/2009/01/10/dell-mini-10-hands-on/

ROUND ROCK, Texas--Dell today launched the InspironT Mini 10, a mini-notebook that adds keyboard comfort and even more entertainment-friendly dimensions to the Inspiron Mini family

    * Ample Keyboard - 92 Percent of Full Size
    * Video-Friendly Screen - 10.1-inch "Edge-to-Edge" 16:9 Widescreen Display
    * QVC Shoppers Get First Look

. Like the Inspiron Mini 9 and Mini 12, the Mini 10 is a compact, easy-to-carry Internet companion featuring wireless and entertainment capabilities to help keep kids, tweens, teens, travelers and "Tweeters" chatting, blogging, streaming content, sharing photos, watching videos and more.

The Mini 10 is scheduled to debut for advance orders today on QVCr at 9 p.m. (EST). A full Mini 10 overview is available at Dell.com, and the system will be available for purchase directly from Dell in the U.S. and other countries beginning Feb. 26.

Products and services like the Inspiron Minis, the Wasabi handheld wireless printer and the Dell Design Studio are redefining value, personalization and customization for connected mobile lifestyles.

The News:

    * Features available today on the Inspiron Mini 10 include:
          o Sleek design and starting weight of only 2.86 lbs.*
          o Roomy keyboard - 92 percent of full-size for comfort and ease of use.
          o Multi-touch gestures touchpad - navigate the screen using simple movements to rotate, scroll and zoom documents and photos.
          o 10.1" WSVGA "edge-to-edge" 16:9 widescreen display.
          o HDMI output for enhanced entertainment connectivity
          o Internal WiFi.
          o Built-in Webcam.
          o Windows XP.
          o 1 GB RAM* standard and 160GB* hard drive, providing ample capacity for mobile applications, content creation and storage.
          o Expanded color palette options to express your personal style: Obsidian Black, Alpine White, Cherry Red, Promise Pink, Ice Blue and Jade Green.
          o Fully featured QVC configuration includes free shipping, a 4GB* SD memory card and productivity software.
          o Available in the U.S. on Dell.com beginning Feb. 26, with a starting price of $399.
          o Also available online in other countries beginning Feb. 26.
          o Dell Remote Access is designed to link directly to home-based digital materials from any Web-connected device.1
          o Dell offers exclusive online file storage - ranging from a free basic plan with 2GB* of storage space to 100 GB* - providing Inspiron Mini users with a simple way to manage their digital lives.
    * Mini 10 optional features planned for later this year include:
          o Internal digital TV tuner, HD resolution and external USB DVD player options for an optimized video entertainment experience.
          o Ubuntu and Vista operating systems.
          o Bluetoothr.
          o WWAN.
          o Internal GPS.
          o 2 GB RAM*.
          o 250 GB hard drive.
          o Solid state drives.
          o Popular Design Studio images to express personal style.

If you are on Twitter and would like to join the conversation about the Inspiron Mini 10, follow www.twitter.com/hashtags, type your comment and end your tweet with #mini10.

1 Home PC must have broadband connection (not included); other minimum system requirements apply. All content might not be accessible from all devices.

* Device weight: Weights vary depending on configuration and manufacturing variability.

Hard Drives: GB means 1 billion bytes and TB equals 1 trillion bytes; actual capacity varies with preloaded material and operating environment and will be less.

Graphics and Shared Memory: Significant system memory may be used to support graphics, depending on system memory size and other factors.

Available operating system and hard drive options might vary by country.

Dell Inspiron is a trademark of Dell Inc.

Bluetooth works well.  I have found 2 options for bluetooth GPS units that can also take a 12v power supply.

This commercial survey grade GPS for $1750

Elcom uTNC for $264 which is a HAM Radio TNC and GPS built into one.  The TNC allows you to do packet radio operations via your computer, like APRS.  There is a small usb plug on the device and one of the pins can be wired to your battery or keyed power source to provide a constant power source to the unit.

If you are willing to drill a small hole in your roof, this GPS makes for an incredibly clean installation and is an awesome GPS (USB).  You can always plug the hole in your roof with a small plastic/rubber plug if you later decide you dont want it up there.

http://mightygps.com/WeatherproofGPSReceiver.htm

I have been looking at this GPS reciever:
http://www.amazon.com/USGLOBALSAT-BU-353-Waterproof-USB-Receiver/dp/B000PKX2KA/ref=pd_bbs_sr_1?ie=UTF8&s=electronics&qid=1235597206&sr=8-1

and I was going to copy the hood mount you created for someone else on here, or possibly just mount it with the 3M double sided sticky foam tape. Then the USB cable could pop out of the dash next to the iPod data cable for the stereo.

The through hull version is more expensive because of the design/casing.  They mightgps also sells the one you are buying for a comparable price.

If you wait a few days, you can buy the GPS you listed at Amazon, through me for the exact same price but I'll get a small commission from Amazon.  You'll be able to add it to your cart along with whatever components of Overland Navigator you purchase.  I'm working on the new webstore that integrates with Amazon right now.

I'd suggest a RAM Mount. They are also out of Seattle, though their largest distributor is in the SW.

Back to Bluetooth - You could certainly adapt this one since it runs off a 12v cigarette lighter outlet. Just get female outlet hooked to a wire and hide the whole mess in the headliner.  It is SIRFIII so it should work through the roof, but if it doesn't, you could always hook an external antenna up to it.  I think this is the setup I'm going to switch over to.

http://www.mightygps.com/carchargergpsreceiver.htm

http://www.mightygps.com/oem/activegpsantenna.htm

Andy

I bought this very receiver 'Globalsat BU-353" and works perfectly out of the box, not one complaint except for the length of cable, could be a little longer but is more than long enough to get the job done. Craig gave me a list of things the receiver should do and this receiver has every last one.

I am very satisfied

I agree, it is highly rated on Amazon and it's waterproof.  The chipset is the best as far as I know.  How long is the USB cable, I can't seem to find data on that.  I would like to avoid using an extension cable, but I will if I have to.

I will let you know if I need anything Craig.  I would also be glad to supply photos of the install.  I will do my best to document what I did to get everything setup in my truck.

Andy this is the reciever that I use...Gotta say that I have had no problems with it and it seems to never drop satalites or have a problem connecting. The only issue I can say is, I wish they made the cable a little longer, but that is a very minor issue.
 

I use the the GlobalSat BU-353 too. It's magnetic, so you don't need to use sticky tape. To avoid cutting a hole in your sheet metal, you might just be able to run the USB cable out the door, into the engine compartment, and up to your roof under your windshield gasket like I did:

I did have to use a USB cable extension to get sufficient length.

I've done this with my XM radio antenna as well. Amazingly, the wires don't seem to get caught on low-hanging branches.

-- Geoff