Level 3, Party 22, A9s in SB

[cha59]

BB has been playing a lot of hands and showing some junk.

Party Poker No-Limit Hold'em Tourney, Big Blind is t50 (8 handed) converter

Button (t965)
Hero (t1075)
BB :#A500AF(Villian)/ (t800)
UTG (t1090)
UTG+1 (t1140)
MP1 (t1520)
MP2 (t985)
CO (t425)

Preflop: Hero is SB with 8[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">6 folds</font>, <font color="#CC3333">Hero raises to t150</font>,
Villian pushes t800
Hero ????

Does anyone fold here against a fishy Villian?