Interesting Student's Hand.. ATo on Bubble

[Jman28]

Hey guys. This is a students hand. It's a 20+2. I've never seen a situation quite like this, and I'm not exactly sure what I'd do. I think my judgement might be off because I saw the opponents hands before deciding.

Thoughts?

Party Poker No-Limit Hold'em Tourney, Big Blind is t100 (5 handed) converter

Hero (t920)
UTG (t370)
MP (t2490)
Button (t1510)
SB (t2710)

Preflop: Hero is BB with A[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">UTG raises to t370 (All-In)</font>, MP calls t370, <font color="#666666">1 fold</font>, SB calls t320, Hero?