good jazz piano

Anything by Bill Evans, Keith Jarrett's "Standards Trio", Thelonious Monk, Michel Petrucciani at the Village Vanguard, Jacky Terrasson, Red Garland w/ the Miles Davis Quintet. Good start.

I would also look at Earl Hines Live at the Village Vanguard. Shirley Scott's piano work is often overshadowed by her brilliant organ playing and of course almost anything by Monk,Evans and Brubeck.

Check out titles by Red Garland and Wynton Kelly.

His last name is Garfinkle. (See previous post)

Slick2: There are some good suggestions above, but here are a few more that you should add to your list:
1. Michel Petrucciani -- a French player who suffered from osteogenesis imperfecta (also known as china bone disease). He's now deceased, much too young, but a marvellous player with some excellent group and solo recordings.
2. Chucho Valdez -- a Cuban pianist with a lot of Latin fire. Check out his recent solo album recorded (I think) at the Village Vanguard.
3. Abdullah Ibrahim, the jazz pianist formerly known as Dollar Brand -- a South African pianist with a wonderful swinging lilt to his style. One of my favorites recordings by him is "Water From An Ancient Well".
4. Erroll Garner -- one of the truly great American pianists. His recording "Concert by the Sea" is a classic, and truly deserves to be.
5. Marian McPartland -- originally from England, Marian is the real deal. She hosts a NPR show called "Piano Jazz" which features a lot of great players.
6. McCoy Tyner -- the piano player for many years in John Coltrane's great quartet of the 1960's. Tyner has a lot of fine recordings, but I'd start with "New York Reunion" on the Chesky label.