GPS Units

If you're after the slip-it-into-a-shirt-pocket variety, I've been very happy with the Garmin Legend. It's been great for goofing around in the wilderness as well as long roadtrips. The latest version seems to have better battery life and more memory than the old thing I've got.

If you're more geared toward the mounted-on-the-dashboard setup with the Stephanie Hawking voice (the imaginary female version of Stephen Hawking), I can't be much help.