400bb Deep AK Hand

[Equal]

10/20
4 players

Stack sizes:
UTG: $1897
Button: $7186.49
SB: $8098.53
Hero: $8375.69

Pre-flop: (4 players) Hero is BB with A[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img]
UTG folds, <font color="#cc0000">Button raises to $70</font>, SB calls, <font color="#cc0000">Hero raises to $300</font>, Button folds, SB calls.

Flop: Q[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/diamond.gif[/img] ($670, 2 players)
SB checks, <font color="#cc0000">Hero bets $555</font>, <font color="#cc0000">SB raises to $1210</font>, Hero calls.

Turn: 6[img]/images/graemlins/diamond.gif[/img] ($3090, 2 players)
<font color="#cc0000">SB bets $2000</font>, Hero folds.

Villain is an unknown 36/14/2.50 over 200 hands. He seems to be playing alright, and not too out of line. My image: I was playing a lot against the recently busted fish, and have 3 bet pre-flop a little more than an average TAG, but I've had legit hands everytime, and have not been caught bluffing or even been moved off a hand.

Thoughts on the line?