Short AA line check - 200nl

[Ojo_Rojo]

Please comment on this hand. Unfortunately villain had only sat down, so I had no reads.

The game is Crypto, 200NL 6 max, and I am in SB w/A [img]/images/graemlins/diamond.gif[/img]A [img]/images/graemlins/club.gif[/img]. Villain has $186 and I have him covered.

Villain limps in MP, Button limps, I raise to $9, only the two limpers call.

Flop: ($29) 6 [img]/images/graemlins/spade.gif[/img]T [img]/images/graemlins/spade.gif[/img]9 [img]/images/graemlins/spade.gif[/img]
I bet $18, Villain minraises to $36. Button folds, and I fold.

Besides not betting enough on the flop, was this too weak-tight? Perhaps smooth-call and bet out on the turn is better? How would you play the hand if I had the A [img]/images/graemlins/spade.gif[/img]?

Thanks!!

Ojo_Rojo