top two vs. possible straight? - Foxwoods 1/2 madness

[kpux]

Foxwoods 1/2 NL $100 max buy-in. I have about $200 and am in EP. I limp with A [img]/images/graemlins/spade.gif[/img]J [img]/images/graemlins/club.gif[/img]. The game is passive enough pre-flop so that I figure I can sneak in with a marginal hand. Or maybe I was just bored. The button limps, the SB calls and the BB (villain, who is pretty weak/tight, with about $70) checks.

Flop comes J [img]/images/graemlins/spade.gif[/img]T [img]/images/graemlins/club.gif[/img]4 [img]/images/graemlins/spade.gif[/img].

I bet out $10, roughly the pot. Only the BB calls.

The turn comes A [img]/images/graemlins/club.gif[/img]. I bet out $20, he moves all in for $40 more. Hmmm...smells like KQ. I only saw him raise pre-flop once, and he had AA. He's really tight, but I there are lots of hands I can beat.

What's my play here?