Top pair, nut flush draw

[jes123]

Party Poker No-Limit Hold'em Tourney, Big Blind is t30 (10 handed) FTR converter on zerodivide.cx

UTG+2 (t1535)
MP1 (t1840)
MP2 (t2900)
MP3 (t965)
CO (t695)
Button (t1775)
SB (t762)
BB (t2355)
Hero (t1305)
UTG+1 (t3850)

Preflop: Hero is UTG with A[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/heart.gif[/img].
Hero calls t30, <font color="#666666">2 folds</font>, <font color="#CC3333">MP1 raises to t125</font>, <font color="#666666">2 folds</font>, CO calls t125, <font color="#666666">3 folds</font>, Hero calls t95.

Flop: (t420) A[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/heart.gif[/img]

MP1 and CO have been fairly tight so far. What would be your move here?