NL400: AA general question when going for limp reraise

[Jeans]

Poker Room skin
Pot Limit Holdem Ring game
Blinds: $2/$4
9 players
Converter

Stack sizes:
Hero: $443.50
UTG+1: $641.40
MP1: $570
MP2: $130
MP3: $844.90
CO: $791.70
Button: $350.40
SB: $618.80
BB: $362

Pre-flop: (9 players) Hero is UTG with A[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img]
Hero calls, UTG+1 calls, 3 folds, CO calls, Button folds, SB calls, BB checks.

Flop: 7[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/spade.gif[/img] ($20, 5 players)
<font color="#cc0000">SB bets $10</font>, BB folds, Hero ?

So my plan gets screwed, is it best to fold right now with 2 players behind me to act? Does the backdoor flushdraw affect the decision? what if the flop was rainbow?