PP 10+1 SNG - Bottom set on a sickly coordinated flop

[gvibes]

Hey all.

I read the "Beating the party poker 10+1 SNG" thread and figured I'd give them a try. This is the only puzzling hand from my first SNG (one of only 3 I played voluntarily for the first 4 phases).

Should I have come out firing on the flop? What would I do if raised? I'm a sometime stupidly-aggressive limit player, but I think I was playing my first SNG really weak-tight.

Party Poker No-Limit Hold'em Tourney, Big Blind is t15 (9 handed)

BB (t1255)
UTG (t1340)
Hero (t775)
MP1 (t655)
MP2 (t925)
MP3 (t1080)
CO (t550)
Button (t740)
SB (t680)

Preflop: Hero is UTG+1 with 6[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/club.gif[/img].
UTG calls t15, Hero calls t15, MP1 calls t15, <font color="CC3333">MP2 raises to t30</font>, MP3 calls t30, CO folds, Button folds, SB calls t20, BB calls t15, UTG calls t15, Hero calls t15, MP1 calls t15.

Flop: (t210) 7[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/diamond.gif[/img] <font color="blue">(7 players)</font>
SB checks, BB checks, UTG checks, Hero checks, MP1 checks, <font color="CC3333">MP2 bets t125</font>, MP3 folds, <font color="CC3333">SB raises to t250</font>, BB folds, UTG folds, Hero folds, MP1 folds, MP2 calls t125.