Heard that watching House, obviously. I can't find anything else like it ( I know it's jazz, but it has a particular sounds. Really slow, smooth, drone-y almost..)

I can't find the name of that song, either. So, either would be helpful. Thanks a lot.

--Jazz Newbie
The song in that clip is "What a Wonderful World", performed by Louis Armstrong.
As for other tracks like that, I'd agree with HoneyFUZZ - check out Round Midnight, especially the Miles Davis version. His album Kind of Blue has some stuff similar to that as well.