I can confirm that BuyGPSNow.com (despite the totally dumb domain name) is really nice to work with. I bought a
GlobalTop G33 and the damn thing works great. Totally blows my friend's Moto Q9's internal GPS out of the water. I get (often) 10-12 satellites while he gets 4 or 5. I even get 10 sitting at my kitchen table. Works great with a 700wx and anything else with basic bluetooth. Not very expensive, easily pocketable and has a HUGE battery life. (I go through two or three treo batteries in the time it takes the GPS to give out). It was just under $50 with free shipping and it made it in three days.
BuyGPSNow.com was really smooth to work with and I have had some online nightmares.