SporTrack Map works great
Our first couple of finds were with the Magellan Trailblazer XL I bought (for over $500) back in the early nineties--a very frustrating device. Got the Geocaching bug and started shopping hard. Saw the Flying J online deal on Geocaching.com and bought two of the SporTrack Maps for $99 ea. plus a $30 rebate (would have got the Pro for $30 more but they were sold out). Sold the second unit on eBay for $129, so ended up with about $39.00 in my unit.
It is accurate, and pretty easy to use with a little practice and reading of the manual. The RAM is a little on the light side--I can fit about two thirds of the state topo from Mapsend, as well as 300+ cache waypoints downloaded from GSAK.
Coords are usually right on, though you can lose signal under heavy tree cover, which is to be expected, I guess.
Wouldn't hesitate to buy another Magellan, but if that Megabucks ticket pans out, a 60cs would be in the mail instantly :D