QTs in MP. What to do?

[sMeller]

SB is 18/8/1.9 over 70 hands.

My play pre flop is probably not optimal but on the flop I don't think I can play it any other way. What should I do on the turn?

PokerRoom 2/4 Hold'em (10 handed) converter

Preflop: Hero is MP2 with T[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">4 folds</font>, Hero calls, MP3 calls, CO calls, <font color="#666666">1 fold</font>, SB completes, BB checks.

Flop: (5 SB) 6[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
<font color="#CC3333">SB bets</font>, BB folds, <font color="#CC3333">Hero raises</font>, MP3 folds, CO folds, <font color="#CC3333">SB 3-bets</font>, Hero calls.

Turn: (5.50 BB) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets</font>, Hero ?