Flopped flush facing push, 2/5 live fairly deep

[Robah44]

was playing at the beau rivage in biloxi. villan is a pretty aggressive player who has bought in with about 2k (no max buyin at any of their games). ive seen him make some big plays but never show anything down. i have about 850 in front of me. my image is very straightforward, but tight/aggressive. the only big hands ive shown down have been a set of 7s vs aces and a flopped broadway with AQs

hero in the BB with J [img]/images/graemlins/club.gif[/img]9 [img]/images/graemlins/club.gif[/img]

middle position opens for $20 button calls SB calls, i call.

flop: pot $80
A [img]/images/graemlins/club.gif[/img]8 [img]/images/graemlins/club.gif[/img]7 [img]/images/graemlins/club.gif[/img]

checks around

turn: pot :$80
2 [img]/images/graemlins/diamond.gif[/img]

SB checks, Hero bets $45, MP folds, BTN folds, SB calls

River: pot :$170
4 [img]/images/graemlins/spade.gif[/img]

SB checks, Hero bets $200, SB shoves, Hero?

it was just under 600 for me to call

i over bet the river to make it look like i was trying to steal, any comments whatsoever appreciated