What to Raise on this Flop

[bluewilde]

I stopped investing in poker books and bought a new luckbox and found myself in the situation below. How do I maximize for value, I wanted to push to force out flush draws, but 800 chips into a 75 chip pot...seemed like a less than optimal move. Should I think more like 150, or was my pot-sized-ish raise ok? Converter misses it, but SB leads again on the turn for 65 and I push, get 2 callers. The guy who shrewdly slow-played AA was pissed [img]/images/graemlins/smile.gif[/img].

Party Poker No-Limit Hold'em Tourney, Big Blind is t15 (9 handed) http://216.119.70.224/converter/hhconverter.pl

CO (t670)
Button (t720)
SB (t770)
Hero (t800)
UTG (t970)
UTG+1 (t1720)
MP1 (t800)
MP2 (t800)
MP3 (t750)

Preflop: Hero is BB with 3[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls t15, <font color="#666666">1 fold</font>, MP2 calls t15, <font color="#666666">1 fold</font>, CO calls t15, <font color="#666666">1 fold</font>, SB completes, Hero checks.

Flop: (t72.50) A[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(5 players)</font>
<font color="#CC3333">SB bets t15</font>, <font color="#CC3333">Hero raises to t80</font>, UTG+1 folds, MP2 calls t80, CO folds, SB calls t65.

Turn: (t312.50) J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>

River: (t312.50) 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>

Final Pot: t312.50