Do it, call--Or No WAY!

[Tru]

Here's the situation:

I'm big stack by far at my table. It's a $50 SNG. I'm in the BB and I have two small stack all ins in front of me. The first push I see as desperation because the blinds are rising. I put him on A2-AK. The second all in call I put on a legitimate hand, most likely any pocket pair. Do I call here with the knowledge that I'm not in any real trouble if I lose and if I win I take out two stacks? Also, my thinking is that my hand will be "live." I folded in the end but I'm not positive it was the right thinking. Obviously I don't want to be reults-oriented. But if I lose, I've only burned off 575 chips. Do my pot odds make this close?

Party Poker No-Limit Hold'em Tourney, Big Blind is t100 (8 handed) converter

MP2 (t675)
CO (t700)
Button (t1530)
SB (t365)
Hero (t3845)
UTG (t800)
UTG+1 (t640)
MP1 (t1445)

Preflop: Hero is BB with 7[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/club.gif[/img].
UTG folds, UTG+1 folds, MP1 folds, <font color="#CC3333">MP2 raises to t675 (All-In)</font>, CO folds, Button folds, SB calls t315 (All-In), Hero folds.

[UMTerp]

Easy fold.