Raise again?

[JoeTable]

I've pushed 3 consecutive hands, buying the blinds with the first two and doubling up with KK to go from t800 to t2800 when I'm dealt this hand UTG:

Party Poker No-Limit Hold'em Tourney, Big Blind is t200 (7 handed) converter

Button (t708)
SB (t1844)
BB (t447)
UTG (t510)
Hero (t2846)
MP2 (t690)
CO (t955)

Preflop: Hero is MP1 with 8[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/diamond.gif[/img]

Hero???