215: Reraising preflop with AK out of position

[Morbo]

There is either this line, or just calling preflop, or checkfolding the flop (which I don't like at all). What do you think?

Party Poker No-Limit Hold'em Tourney, Big Blind is t30 (10 handed) converter

Button (t940)
SB (t975)
Hero (t975)
UTG (t1045)
UTG+1 (t980)
UTG+2 (t970)
MP1 (t860)
MP2 (t960)
MP3 (t1720)
CO (t575)

Preflop: Hero is BB with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img].
2 folds, UTG+2 calls t30, 1 fold, MP2 calls t30, MP3 raises to t100, 3 folds, Hero raises to t300, UTG+2 folds, MP2 folds, MP3 calls t200.

Flop: (t675) 6[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/club.gif[/img] (2 players)
Hero bets t675 (all-in).