$220 Live freezeout, 4 left. What's my line on the turn?

[APipeDream]

$220 buy-in, 3000 chips to start
97 players, 9 paid, 1st gets $5600
4 left

My image in this tourney is pretty aggressive and unpredictable. I have won with some odd hands after raising or reraising pf, slowplaying, etc. I have almost always bet when checked to me heads up, and always put in a continuation bet post flop when last to raise preflop. Villain seems like a thinking player, but I can't tell if it's because he really doesn't understand what's going on, or has been making awesome calls and reads. Sometimes seems like a fish with his plays, but can't really claim that after the number of hands I've seen. Here is the hand:

Stacks:
1: 30K
2: 43K
SB (Villain): 118K
BB (Hero): 100K

Blinds are 2000/4000/200

I am BB w/ A[img]/images/graemlins/heart.gif[/img]7[img]/images/graemlins/heart.gif[/img]. Action folds to Villain who makes it 11K to go. I just bullied 3 pots in a row out of the table, so I just call. Flop is:

J[img]/images/graemlins/heart.gif[/img]9[img]/images/graemlins/heart.gif[/img]7[img]/images/graemlins/spade.gif[/img]

Villain bets out 12K. I make it 26K to go. He insta-calls. Turn:

T[img]/images/graemlins/heart.gif[/img]

He checks...Hero? I am pretty sure I will bet if at the least, based on my image. I want all of his chips. [img]/images/graemlins/smile.gif[/img]

What do you bet here? The pot is now around 64K.

[TimberBee]

I'll just bet 34k, and the rest on the river if called.