Hey guys ive been browsing the site for a few weeks but just decided to register. I am really interested in using my treo650 for gps and mapping but dont have $150-200 to throw around for it.
I see there are several bluetooth gps units on ebay in the $75 range, are these any good, will they serve the same purpose?

Also is there any mapping/gps software thats free but of good quality. I tried earthcomber and it SUCKED. There were alot of missing streets on the maps, it didnt find a single address out of a dozen i entered, and was generally slow and hard to navigate.

I used magellan GPS units before on my old palms and loved it, but never a bluetooth before.