100nl: Pushing AKs preflop

[underthesky]

BB has just sat down. I know I have stats on him from a previous session, but they aren't on my screen yet. Maybe he knows me as a blind stealer from playing with me then. Though I doubt he's 3-betting light. SB is about 65 30 3 after 60 hands.

BB has $100
SB has $60
Hero has $100

6 players
Blinds $.50/1
Hero is dealt A[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/heart.gif[/img] on the button

3 folds, Hero raises to $4, SB calls, BB raises to $20, Hero pushes.

Thoughts?