I saw today on NPR.org that John Scofield has a new album out covering some of his favorite Ray Charles songs (That's What I Say - JS Plays the Music of Ray Charles). You can listen to the story and some of the songs on the npr link; he's got some great singers on the album (Warren Haynes, Aaron Neville, John Mayer, Dr. John). I think I'm going to pick it up.
Scofield is one of the coolest guitarists in jazz. Cool by way of understatement. Somehow you know he could play a million notes a minute, but a few do much better. Even if you don't like jazz, you could dig "Sco"; it's a lot of laid-back groovy stuff.
I read on his website that he's done over 30 albums...I only have one, so I'm way behind. Anyhoo, I thought I'd point him out to further your musical tastes!