A-A flop decision

[LetYouDown]

Live $1/2 NL

Table has more money than I've ever seen at a capped $100 table, more than one player approaching 1000 BB. Hero is in the SB with A[img]/images/graemlins/diamond.gif[/img]A[img]/images/graemlins/heart.gif[/img]. Several limpers to me, I make it $15. All fold to the button (~$200), who calls. Villain had been playing pretty tight and you could tell he needed the money. Nothing out of line yet. I have villain well covered. Pot is about ~$40 heading to the flop.

Flop: 4[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/spade.gif[/img]

Hero bets $30, villain raises to $60. Hero...?