i have a Garmin Cx (now replaced by the HCx) or 60Cx is good if not better too. (the little "x" means it has a removable micro chip) I love it. Ibucus topo is free. I paid $130 for deatiled norath america road, and just swap the chips when hunting. Bought a couple 8 gig trans micro chips from Direct Buy. Price: $250. Batteries, NiMH or AA will work. Adapter available for vehcile.I've used it daily for 3 years now. No complaints would buy the 60Cx next time.
You can't go wrong with a Garmin, but you can with a Magellan.
I own various GPS', Magellan is nothing but headaches, from software to support. Go Garmin.