Lay this down on the turn?

[AceKQJT]

I had been playing 10/20 at my local casino for a couple of hours, just bouncing between even and +$100. The table had been extremely loose the entire time, and every hand went to showdown.

EP raises have been getting little to no respect...and for good reason. The following UTG raising hands have been shown in the last 2 hours: 4-4, 5-5, 7-7, T-Js, Q-Jo, A-xs

So here's what went down:

I am dealt A [img]/images/graemlins/heart.gif[/img] 7 [img]/images/graemlins/heart.gif[/img] in the CO.

UTG calls, EP1 calls, EP2 calls, MP1 calls, MP2 calls, LP1 calls, I call, Button calls, SB completes, BB checks

FLOP: 7 [img]/images/graemlins/diamond.gif[/img] 6 [img]/images/graemlins/heart.gif[/img] 4 [img]/images/graemlins/heart.gif[/img] ($100)
Checked around to MP2 who bets, everyone calls

TURN: [7 [img]/images/graemlins/diamond.gif[/img] 6 [img]/images/graemlins/heart.gif[/img] 4 [img]/images/graemlins/heart.gif[/img]] [3 [img]/images/graemlins/club.gif[/img]] ($200)
Checked to MP2 who bets, called to me & I call, Button calls, SB Raises, BB folds, UTG calls, EP1 folds, EP2 calls, MP1 folds, MP2 reraises, LP1 calls, I cap, SB folds, UTG calls, EP2 calls, MP1 calls, MP2 calls, LP1 calls.

RIVER: [7 [img]/images/graemlins/diamond.gif[/img] 6 [img]/images/graemlins/heart.gif[/img] 4 [img]/images/graemlins/heart.gif[/img] 3 [img]/images/graemlins/club.gif[/img]] [K [img]/images/graemlins/heart.gif[/img]] ($680)
Checked to me, I bet, everyone calls
I win an $800 pot with the nuts

4 players turn over a 5, for the straight. 1 player turns over a smaller flush. MP2 had 5-8o and was cussing me like a sailor (he had the NUTS on the flop, & I CAPPED the turn on a flush draw..LOL).

It didn't look like many people were going to fold to the turn action, so I thought I was getting 5-1 odds minimum. How bad was my play?

--Casey