Straight but the flush draw gets there...

[MuckerFish]

I figure I've sucked enough free education from you guys, and it's my turn to start contributing. I'll try to post one or two of my more thought provoking hands each week. Hope it helps the forum a bit.
(The site I play at isn't supported by the converter, I'll try to re-create the format as best as possible)

200NL, 9 handed
Button: 238
SB: 237.25
BB (Hero): 278.5
UTG: 117.5
UTG+1 (Villian) : 249.25
UTG+2 255.39
MP1: 90.90

Preflop; Hero dealt 9 [img]/images/graemlins/club.gif[/img]T [img]/images/graemlins/club.gif[/img]
UTG calls, Villian calls, UTG+2 calls, UTG+3 calls, folds to me, I check. 5 players, pot=10.5

Flop: 7 [img]/images/graemlins/heart.gif[/img]8 [img]/images/graemlins/heart.gif[/img]6 [img]/images/graemlins/diamond.gif[/img]
Hero bets 12, 1 fold, villian calls, MP1 calls. 3 players, pot=47

Turn Q [img]/images/graemlins/spade.gif[/img]
Hero bet 65, Villian calls, MP folds. Pot= 175

River: 5 [img]/images/graemlins/heart.gif[/img]
Hero??

No significant reads on villian, haven't seen him get out of line in the short time at the table.
The flush getting there was worrisome. Does open pushing the river have enough fold equity against a non-nut flush? Does it lose too much value from 2 pair/over pair/sets? If I block for 80 or so, I'd get queasy if he comes over the top, leaving me having to call 120 to win about 350.

All comments appreciated. Thanks!