My Garmin Quest. I have a Magellan Map 330 I've had for a few years, but I've really been wanting a mapping/autorouting GPS with color screen. The Quest seemed perfect.  Small, color display, external antenna connection, USB, built in battery and 115mb of memory!  Some people think that's not enough, but I loaded all of my state, the surrounding areas I usually drive (and some I may), OH and PA for an upcoming trip and parts of NYC.  I still had 20mb to spare.

http://www.garmin.com/products/quest/

I purchased it from www.shipdog.com  I had never heard of them, but all their reviews were good on www.pricegrabber.com I had the GPS in 3 days.

Now all I need is a new Ram mount and I'm set!  I generally get them from www.cycoactive.com  Very nice people and quick shipping.   www.gpscity.com is supposed to be good also, but I've never ordered from them