I'm new to geocaching. But I have a Garmin III+ with thousands of hours use. (It's like the Garmin V but no route calculation and lower resolution screen). It doesn't lock well if started while moving on a curving road. Otherwise it does fine, I find it plenty sensitive and, without WAAS or whatever, it still can tell what lane of the freeway your in or within about 12 feet almost always. My wishes for bigger memory would be solved with newer units. It's very rugged, the dashboard and bicycle brackets work great and batteries last 30+ hours of use.
My remaining issue: Which does the best and most breadcrumb trails and easily loads them on a map on your home computer? I like to explore new areas and would like to record where I've been accurately so I can get there again. I like the topo map from mapsource but it's lacking in resolution. Is there a better basemap? Can I download my trip data to a computer and free up the GPS memory and print the map/trip? Can I plan a trip on the computer and upload to GPS? Could I also plug a handheld GPS into my computer while driving and have it show my position on a 14" screen?
These are the upgrades I'd like in a new unit. Is there anything like that out there?