Running top two

[Vehn]

I was actually villain/sb in this hand, hero/bb was playing 19/11, I was playing 24/21 on this table and had been attacking him a bit more than I "should" as I was oop. But hadn't been caught being really out of line yet.

Hero/BB has AsKs.

Full Tilt Poker
No Limit Hold'em Cash Game
$0.50/$1 Blinds
7 Players
Lego Poker Hand Converter

UTG folds, UTG+1 folds, MP folds, CO folds, SB raises to $4, Hero raises to $14 with A[img]/images/graemlins/spade.gif[/img]K[img]/images/graemlins/spade.gif[/img], SB calls $10

<font color="black">Flop:</font> 7[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/heart.gif[/img] ($28, 2 Players)
SB checks, Hero checks

<font color="black">Turn:</font> K[img]/images/graemlins/club.gif[/img] ($28, 2 Players)
SB bets $17, Hero calls $17

<font color="black">River:</font> A[img]/images/graemlins/diamond.gif[/img] ($62, 2 Players)
SB bets all-in for $306.50, Hero...? ($79 left)

what would you do?