Where can I get sheet music for some jazz?

I'd like to play some jazz music on the piano; a lot like what Hugh Laurie (as Greg House) plays in 'House'. It's the sort of music I really like (and I have my AMUS teaching diploma so I'm not phased by difficult music). Chordy, chill, stuff. If you know any particular songs, that'd be nice. If you can link me some free sheet music, that'd be nice too =]