Just recieved my Garmin eTrex Venture HC - Tell me what I need!

[elwayfan446]

 I bought this GPS for Backpacking trips and to start geocaching with.  I am a newbie with Handheld GPS and would love to know what the best maps, etc. are for my unit.  I live in Arkansas and have downloaded the Arkansas Topo and My Trails map from this site.  MapSource came with my unit.  Can you tell me what else I should use?

Great site here!!

[maps4gps]

What does that combination of mapsets lack that you think you need?

[elwayfan446]

oh... nothing necessarily.  There is just a lot of cool stuff on the site so I thought I would get an idea on what people here thought was the "must have" stuff.  Just getting opinions.