Too ag with TPWK?

[Catsailor]

Utg 1 is calling station who likes to bluff/raise flop. Will call down with nada.
Utg 2 Lpf, raises any Ax & chases draws alot. Will fold to aggresion.
SB seems solid pf, No other real reads as this is early in the session.
There has been a lot of limping and folding on the flop. Otherwise I wouldn't have been in this flop.

PokerStars 0.25/0.50 Hold'em (10 handed) FTR converter on zerodivide.cx

Preflop: Hero is UTG+2 with Q[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/spade.gif[/img].
UTG calls, UTG+1 calls, Hero calls, <font color="#666666">1 fold</font>, MP2 calls, <font color="#666666">1 fold</font>, CO calls, <font color="#666666">1 fold</font>, SB completes, BB checks.

Flop: (7 SB) 3[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(7 players)</font>
<font color="#CC3333">SB bets</font>, BB folds, UTG calls, UTG+1 calls, <font color="#CC3333">Hero raises</font>, MP2 folds, CO folds, SB calls, UTG calls, UTG+1 calls.

I thought I had 2 Q outs and maybe discount 3 8's to 1.5 outs so maybe 6 to 1. Maybe thin the field and hope for no overcards.


Turn: (7.50 BB) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, UTG checks, UTG+1 checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">SB raises</font>, UTG calls, UTG+1 calls, Hero calls.

I hate the A but haven't seen SB ck/r before so I bet out.
Mistake? Now I fear SB has x3,Ax, or Q higher kicker. UTG's are just coming along. Should I have ck'ed turn? Should I fold to the ck/r now? Or go into call down mode?
Thanks for any help
Cat