Going paperless can be a wonderful experience, and also a little frustrating in the beginning. First you have to be a premium memeber of geocaching.com. Then you can make and receive PQ's, ( pocket queries ). This is the information necessary to start your paperless caching journey. You will also need one of the many downloadable software titles to manage your PQ's. I like many others use GSAK. Geocaching Swiss Army Knife.(gask.com) this will also allow you to download the waypoints directly into your GPS'r, with the appropriate cable, thus eliminating the manual entries. From here you will need to purchase a PDA. I have had the Zire 21 for a couple of years now and for an introductory unit it works just fine. So far your total investment should be......Premium Member 30.00 yearly, GSAK 30.00 membership, and around 100.00 for the PDA. Oh and I forgot, Cachemate. The software your PDA will need to run the information. I think I paid 8.00 for that. So far that's 168.00. If you need some of the other functions a PDA can give you, that might justify your spending the money.
While the Colorado is a good unit and nice to have all of the info at your fingertips, the cost is sometimes just too much. If you really like caching, then paperless is the way to go. Hope this helps and I'm sure others will also help out here. Search the web for the best prices on a PDA.
Why not live life like it is your last day....instead of pretending to be a member of the Peter Pan Club and believing you will be around forever.