Should I push here or wait for a better hand to go with? The blinds have been playing ok and I haven't seen any donk calls by them.

Party Poker No-Limit Hold'em Tourney, Big Blind is t300 (5 handed) converter

SB (t1250)
BB (t2505)
UTG (t2790)
MP (t2220)
Hero (t1235)

Preflop: Hero is Button with Q[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/heart.gif[/img].
UTG and MP fold, Hero is allin, sb folds and BB calls t935.

Flop: (t1385) 3[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>

Turn: (t1385) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>

River: (t1385) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>


BB has Qs Ah (one pair, nines).
Hero has Qd 7h (one pair, nines).
Outcome: BB wins t2620