AQs TPTK big pot

[Man of Means]

This is the only hand I played last night where I was totally in the dark postflop. And I went the passive way. Please discuss.
Also capping preflop with this large field: yay or nay?

4/8 foxwoods, mostly loose passive opponents
Preflop 3-bettor: This is the first time I've seen him 3town in a few hours. Still, he has a "gambler" image.

Hero has A[img]/images/graemlins/spade.gif[/img]Q[img]/images/graemlins/spade.gif[/img] in EMP. 1 limper, Hero raises, Villain 3bets next in, button calls the $12, blinds and limper come along as well.

Flop (6 players, 18 sb)
Q[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/spade.gif[/img]
Blinds and limper check, Hero checks, PFR bets, all call, Hero calls.
Bet out, C/r here, or wait for safe turn to fling poo?

Turn (6 players, 12 bb)
7[img]/images/graemlins/club.gif[/img]
Checked, Hero checks, PFR bets, no one raises but 1 person might have folded. Hero calls.

River (many players still, 17-18 bb)
6 [img]/images/graemlins/spade.gif[/img]
Checked, Hero checks,...