one suggestion: go find the phones in a store themselves and get a chance to play with them or touch them a bit. When I was looking for a new one, I had a few picked out and when I got to the store to look at them I totally hated how they felt in my hand or how difficult they would be to dial.

Flippy phones are kinda nice though, you never accidently dial (even with the key lock on mine, if you accidently push the buttons right I get a "Dial SOS?" message on my display ALL THE TIME.) I loved my flippy phone that I used to have (it died, but it was old old old.)