Posted by: ShadyClip on Oct-29-12 1:34 PM (EST)
I agree with above recos.
gpstracklog.com is a good site for learning about handheld GPS, maps, and product reviews. They do seem to like the Garmin units more than others. If you are willing to spend the time on that site you should come out with a better idea what you might want.
My Oregon 450 is currently loaded up with a number of free topos from GPSFileDepot for the PA, NJ, and Del area. I have also found some nice POIs, trails, and rail trail maps on there.