Everyone at the table seemed decent so far, no one was overly aggressive or loose.

Party Poker No-Limit Hold'em Tourney, Big Blind is t300 (5 handed) FTR converter on zerodivide.cx

SB (t1635)
Hero (t1740)
UTG (t30)
MP (t2535)
Button (t2060)

Preflop: Hero is BB with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to t700</font>, Button calls t700, Hero?

Push or fold?