Defense - help with SB steal attempt

[Roadstar]

Recently moved up to 1/2 - heres a situation I rarely faced at .5/1.

Any pointers greatly appreciated. Reads - SB is TAA as rated by pokertracker. 16% VPIP 5% PFR over 50 or so hands. Aggressive factor also >2

Party Poker 1/2 Hold'em (10 handed) converter

Preflop: Hero is BB with A[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/heart.gif[/img].
<font color="#666666">8 folds</font>, <font color="#CC3333">SB raises</font>, Hero calls.

Seems like a steal to me, do you 3 bet or call here?

Flop: (4 SB) A[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">SB 3-bets</font>, Hero calls.

Hit top pair, I raise, SB 3 bets - am I outkicked here?

Turn: (5 BB) Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, SB calls.

SB checks looks suspicious, I bet because my flush draw might be worth something in case I get C/R.

River: (7 BB) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

Do you check here or bet for value?

Final Pot: 7 BB

Thanks guys!