Thank you to everyone who responded! After reading your advise I have been watching eBay for an Oregon 450, but they all sell for almost the price of a new unit at Best Buy ($329) or a refurbished from Amazon ($289). After following bids for the past week, I was getting discouraged. However, this morning I got (what I consider) the deal of the century. I purchased a Garmin Oregon 550T, which retails for $599, for $250. I also had some leftover ebay gift cards which brought the total out of pocket cost down to a measly $189!! Even if I get $30 or $40 for my Garmin eTrex Legend, I think I will have gotten a great GPS for a dynamite deal.
Thanks again for your input. I hope to see you all out on the trail.
Now get out there and cache!
-Alan of BAAM-CT