7.50 big stack confrontation

Comments on all streets (especially the flop and turn).

Bodog 7.50. Blinds 600/1200 with 150 ante. I have ~t60k, big stack at the tournament. We're just ITM with ~50 players remaining. My image is ubertight as the table has been way too loose.

Big stack villain in the hand has been loose/passive. Don't know much about SB, so probably pretty tight.

Other big stack (t50k) limps in CO, which is common.
Button (t30k) limps
SB (t20k) completes
I (t60k) check with Q8o.

POT = t6k
FLOP: 7[img]/images/graemlins/spade.gif[/img]6[img]/images/graemlins/heart.gif[/img]9[img]/images/graemlins/diamond.gif[/img]

SB bets 1200 (min)
I call
Other big calls
Button folds

POT = t10k
TURN: (7[img]/images/graemlins/spade.gif[/img]6[img]/images/graemlins/heart.gif[/img]9[img]/images/graemlins/diamond.gif[/img])Q[img]/images/graemlins/club.gif[/img]

SB checks
Hero bets t4k
Other big calls
SB folds

POT = t18k
RIVER: TURN: (7[img]/images/graemlins/spade.gif[/img]6[img]/images/graemlins/heart.gif[/img]9[img]/images/graemlins/diamond.gif[/img]Q[img]/images/graemlins/club.gif[/img])A[img]/images/graemlins/spade.gif[/img]

Hero????