I'm getting my uncle's old one pretty soon (only 5 months old) for free, and we are now on his service, so I don't have to pay for cell phone service either.
I've seen the thing once before when it was brand new and I think it was a Sony Ericsson (not positive), and it's a slider phone. Even if it's kinda crappy, hey, it's free and not very old, so I can't complain. It's better than my current $40 pay as you go phone.
EDIT: got it today. It's a Sony Ericsson W580i. Not too bad, 2MP camera that takes nice pics, and a music player. Quality for phone calls isn't so great...but i got it for free, so whatever. It would be nice if the size of the internal memory wasn't so small. At least there's a slot for a card.