Some help with a hand please

[1C5]

Now bear with me, I am almost getting close to explode here. This caps off another losing night and makes the buy in drop over 30 buy ins in the 22s for me I am sure which is my worst downswing yet.

Interesting hand. My thinking: Play for 1st. Call with AA and then push on the flop. But then look at the flop. Yuck. 3 spades and I have none. What do you do here? Notice the small stack. And I am probably ahead here but there is a good chance another spade will come to knock me out. So fold or call?

Party Poker No-Limit Hold'em Tourney, Big Blind is t400 (4 handed) converter

Hero (t2390)
SB (t1664)
BB (t758)
UTG (t3188)

Preflop: Hero is Button with A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">UTG raises to t1100</font>, Hero calls t1100, <font color="#666666">2 folds</font>.

Flop: (t2800) 4[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets t2088 (All-In)</font>, Hero ?