I've just (last 3 weeks) bought a IPAQ 2210 and TomTom Nav2 as a good bundle from :-
http://www.globalpositioningsystems....product_id=574
It came bundled with the Ipaq 2210, Bluetooth GPS unit, Arkon car mount, 128Mb CF memory card.
The great thing about their setup is you get everything including a car charger which will run both the GPS and IPAQ at the same time if you want.
However the battery on the Globalsat BT-308 GPS is larger than most so it runs continuous for 8 - 11 hours on a single charge so you can wonder around with it switched on on cycle rides, then just switch on the IPAQ when you need to see where you are.
I am very pleased with my purchase, however, the pros and cons are:-
Tomtom is the best software but the maps appear to be a couple of years out of date in some locations.
The globalsat reciever is excellent and tiny too, mine just sticks to a piece of velcro on the dash to stop it sliding about.
The instructions to first set it up are a bit lacking.
There is a reported issue with IPAQ 2210s dropping connection with BT GPS recievers if the maps are stored on an SD card, perhaps thats why they supply a CF card since I have not experienced any of those.
However, I'm sure I've read of an issue where dell axims run VERY slow reading an SD card also.
Great battery life on the GPS, however I think the battery life on the IPAQ is only 5 hours.
The IPAQ 2210 is a perfect size, fits nicely in a shirt poket.
The included carry case is a bit pants.
Tomtom 2 can load up 3rd party points of interest like speed cameras!
Tomtom 2 can be a bit fragile, I've had it lockup a few times, mostly when I've been running other programs. Easily fixed tho with a soft reset which doesn't loose any data, just like restarting a PC and you're up and running again in about 30secs.
When TT2 is the only program running it seems fine tho.
IPAQ also has a remote controll program included called NEVO, works my telly, vcr, cd, dvd etc.
Err, I think I've covered everything!
Ask if you want to know any more.
-Neil
EDIT
AH just remembered there is a win 2003 mobile / IPAQ bug which locks up the IPAQ and needs a soft reset. If you turn off the ipaq with an active bluetooth connection going, then, the ipaq will not restart without the soft reset. Just remember to close the BT connection and I close TT2 as well before you switch off. Pain in the neck tho.