5/10NL@ commerce: Fire 3rd barrell?

[Kirkrrr]

This took place quite a while back but it's been on my mind ever since and I haven't been able to come to a decision one way or another, so figured I'll try to get some input.

Villain is decent, not very aggressive, not particularly tricky or imaginative. Plays pretty solid, ABC poker. I'm one of the most aggressive players at the table. The game, from what I recall, is fairly loose/passive.

Villain - MP2(1600)
Hero - Button(2200) - K [img]/images/graemlins/diamond.gif[/img]Q [img]/images/graemlins/spade.gif[/img]

2 limeprs, I make it 40 to go (I limp/raise this about 50/50), Blinds fold, fist limper folds, Villain calls.

Flop: 3 [img]/images/graemlins/club.gif[/img] 5 [img]/images/graemlins/diamond.gif[/img] 7 [img]/images/graemlins/heart.gif[/img]

Villain checks, Hero bets 75, he calls.

Turn(240): 9 [img]/images/graemlins/spade.gif[/img]

Check, Hero bets 200, Villain considers for about 5 seconds and calls.

River: J [img]/images/graemlins/diamond.gif[/img]

Villain checks, Hero...?

Obviously it's a little harder to say not being there, but what's the SOP for most posters here? Check the turn? Keep trying to take it down? Give it up?

Thanks,
Kirk