Whats a good simple mp3 player?

All i've ever used is Winamp and i've been fine. But this computer i'm on at work has memory problems and things get ridiculously slow if i open up one too many programs, especially with Winamp open. I need something that'll let me setup a playlist. Thats prettty much the only requirement.

I like Zinf (formerly freeamp)

Maybe you could pick up a really old version of Winamp.