$10+1: Appropriate turn aggression, or -EV?

[spentrent]

Party Poker No-Limit Hold'em Tourney, Big Blind is t30 (8 handed) converter

UTG (t730)
UTG+1 (t1210)
MP1 (t790)
MP2 (t215)
CO (t505)
Button (t2900)
SB (t875)
Hero (t775)

Preflop: Hero is BB with J[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/spade.gif[/img].
UTG calls t30, <font color="#666666">3 folds</font>, CO calls t30, <font color="#666666">1 fold</font>, SB completes, Hero checks.

Flop: (t120) 3[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, UTG checks, CO checks.

Turn: (t120) J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets t100</font>, HERO RAISES ALL-IN, UTG folds, CO folds, SB folds.


I figure that in these games it's likely I'll be called by TJ|QJ|KJ|AJ and slowplayed big pairs QQ|KK|AA.

JJ|99|33|22|J9 are the hands I fear, but I decided that there are quite a few more losing hand combinations out there that will call me; hell, a hand like A9|K9 might even call me, "smelling a bluff."

I'm hesitant to bet less since I don't want to make a tough decision on the river, and the pot seems nice enough for this weak two pair.

Any suggestions, criticisms, comments, advice? A better line?