TPBK/weak draw vs. LAG: Turn play

[NIX]

I've been playing with the SB for only a short time (~25 hands) and only have his stats for 15 hands so far where he's at 64/14/15. We were playing pretty quickly with few hands getting shown down, although there was one where he limped J9 PF, bet his middle pair, called a turn donk, and checked behind on the river. Every hand we've been involved in together has had him raising me on the flop/turn and me folding on the turn, or me calling and raising him on the turn or river and him folding.

The SB and I were playing 3-handed for most of those before two random people sat down. The BB is one of them, and I have an old note on him saying he's LAGgish, but that's all I had to go on at this point.

PokerStars 0.50/1.00 Hold'em (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is MP with 9[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, SB calls, BB calls.

Flop: (6 SB) 8[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, BB checks, Hero checks.

Turn: (3 BB) A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">SB raises</font>, BB folds, Hero ???

I may have the best hand on the flop, but I'm not sure how often I'll get folds, and with how aggressive SB has been, I figure I can get raised by a lot of hearts or other worse hands and I wouldn't be too happy continuing depending on how BB reacts. I decided to take my free card on the flop. Good idea?

I think I did give my hand away on the flop though and it came in on the turn. I think I'm announcing I paired the ace, but with the agro SB raising, is it worth continuing with my not too good flush draw?