A7s, 4 bets PF, what's my play?

[kross]

New to the table, only about my 2nd hand actually (plus a couple observed hands waiting for the BB), but button has been very aggressive.

Full Tilt Poker $1/$2 Limit Hold'em - 4 players
Hand Converter Tool from DeucesCracked.com

Preflop: Hero is SB with A[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img]
CO folds, <font color="#FF0000">Button raises</font>, <font color="#FF0000">Hero 3-bets</font>, BB calls, <font color="#FF0000">Button caps!</font>, Hero calls, BB folds.

Flop: (11.00 SB) Q[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#FF0000">Button bets</font>, Hero ... ???

I think arguments can be made for calling, check/raising, and folding. I tend to fold in these spots, but I feel dirty when I do...