Since I'm a fan of finding real life examples of types, let's talk about some musicians. I'll post my opinions, but keep in mind that this is in no way definitive; I hate definitives. Some people keep on forgetting that right away, and criticize automatically with out giving any reason. Ok, here goes;
Bob Dylan- INTP
Elvis- ESFP
Anthony Kiedis- INFP
Flea- ISTJ
John Fuscante- ENTP?
Van Halen- INFP
Billy Joe- ENTP
Mick Jagger- ENTP
Keith Richards- ISTP
Kurt Cobain- INFP
Dave Grohl- ISTP
Cedric Bixler- ISFP
Omar Rodriguez- ESTP
Jon Theodore- ISTJ
Flea- ISTJ
Jimi Hendrix- INFP
Micheal Jackson- INFP
Eric Clapton- ENTP (J?)
Freddy Mercury- ENFP ?
I think that's a nice start.