Since I already had a Palm M515, and wanted to a get into Geocaching on the cheap, I purchased a Magellen Palm Companion from the Palm site for only $70 after rebates. The unit works great and has taken me right to several caches. The included software works well, and includes downloadable maps which appear, at least in my opinion, to be very complete. Even here in rural Iowa it has the back roads. I downloaded "cachemate" software for the GPS, and info from the geocaching site dumps right into it. I have everything from the site, including general notes and hints. I haven't figured out how to get the actual waypoints to download directly to the GPS software however. I've had to re-key those in (or just use cut and paste). While this isn't too bad, I'm sure there is a better way. I'm open to ideas or sharing what I've learned with anyone else who is using the Magellan GPS companion with a Palm m515 or similar.