FT 5.50 AKo on the bubble, weird spot

[allhappythoughts]

Full Tilt Poker
No Limit Holdem Tournament
Blinds: t100/t200
4 players
Converter

Stack sizes:
UTG: t5800
Hero: t2810
SB: t1160
BB: t3730

Pre-flop: (4 players) Hero is Button with A[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/diamond.gif[/img]
UTG calls t200 <font color="aaaaaa">(pot was t300)</font>

I'm on the button here and I know I'm ahead of UTG's holding (he's been real loose all game). Here's the thing though--I'm in pretty good position in terms of stack sizes, and I should be able to make it into the money without too much sweat, but this is a premium holding late. How do I play this? I didn't think shoving was good at all since all I have is A-high and I don't know what the blinds could have. If short stack called then I'd potentially double him up and become the shortstack myself. If I raise and then get reraised, then what? I have to say that UTG has no idea how to play the bubble, he's not raising too often but he loves to limp in and see about a million flops (very very very lag). So what do you do here?

I posted what happened in the hand in white here, in case you're interested, but I don't think the results are all that important:

I'll say that I elected to call with the decision to call any all-ins (reluctantly) bc I want first. I ended up taking down the pot (800) after a K flopped on a very non-threatening board, but I'm not sure my pf play was optimal at all.

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