Stars $500k hand w/TP against another big stack

[Lloyd]

Tough decision here:

Approaching the bubble of the PokerStars $215 $500k Guaranteed. About 350 left and 324 pay. I've been a little aggressive but not overly so. I was in a pot with the villain here when he raised UTG, got two limpers, and I pushed in the BB. Other than that we haven't clashed but he's been very aggressive pre-flop.

Hero: t37554 (top 50 or so)
Villain: t29608

Blinds 800/1600/75

I open in MP w/ATo for t4000. Villain calls me on the button. Everyone else is out. Villain's call was a little surprising as he has raised about 25% of the time pre-flop.

Flop 2[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/club.gif[/img]

Pot: t11,075

I bet t7000. Villain pushes remaining t25533.

Pot: t43,607

It's costing me t18533 to call so I'm getting 2.3 to 1 odds.

Do I make the call?