Push on the Bubble here?

[Xenod]

Pokerroom 11

Seat 1: Dude ($2,260 in chips)
Seat 3: BigStack ($7,150 in chips)
Seat 7: Hero [5[img]/images/graemlins/club.gif[/img],5[img]/images/graemlins/spade.gif[/img]] ($3,450 in chips)
Seat 9: BB ($2,140 in chips)
ANTES/BLINDS
Hero posts blind ($300), BB posts blind ($600).

PRE-FLOP
Dude folds, BigStack bets $1,200, Hero...


BigStack has been stealing blinds left and right, and has been especially savage when he's SB and I'm BB. Everyone except for the bigstack has been taking turns being the shortstack. Haven't seen much in the way of cards and I'm crusing on a blindsteal from maybe 4-5 hands ago. So, what would be the correct play here. I suspect it's to push, but I wonder if there's any merit for waiting for a better hand to fight back with, since I'm not especially desperate right now.