Flopped 10 high flush

[ObnxNole]

5/10 no limit live game at The Grand in Biloxi. I am sitting with about 4k and have the table covered(Except Fsuplayer, who is on my right but not in this hand). I limp in late position with 10 [img]/images/graemlins/diamond.gif[/img]7 [img]/images/graemlins/diamond.gif[/img] then call a small raise from the small blind.
Flop: 2 [img]/images/graemlins/diamond.gif[/img]5 [img]/images/graemlins/diamond.gif[/img]6 [img]/images/graemlins/diamond.gif[/img]
Small blind leads out for $75. UTG(3k)is a young, rich guy who brags about playing 10/20 and 50/100 no limit at The Wynn in Las Vegas makes it $200 straight. He's very flashy and loves to bet big.

I think and call. Small blind folds.

Turn is a A[img]/images/graemlins/heart.gif[/img] . UTG bets $500, then tells me I can pick one of his cards to look at. I point to the one on the right and its the 9 [img]/images/graemlins/diamond.gif[/img].

I call.

River pairs the board. He bets $500 again. I instantly push all in. Thoughts?