Party Poker No-Limit Hold'em Tourney, Big Blind is t200 (5 handed) converter

Hero (t1238)
UTG (t1218)
MP (t1031)
Button (t1308)
SB (t3205)

Preflop: Hero is BB with Q[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/heart.gif[/img].

UTG limps. Folds to me in BB. Push now, or check and push any flop? Or check and push any favorable flop?