Near nut river bet

[bengali]

Its the first time I post a hand here.. please be gentle [img]/images/graemlins/smile.gif[/img]

dont really have a read on villain as I only sat in a couple of hands ago. here we go:

Betsson $50

Omaha Hi $0.50-$1 PL (real money),


villain has my $60 covered.

dealt to Hero: A [img]/images/graemlins/spade.gif[/img],5 [img]/images/graemlins/heart.gif[/img],7 [img]/images/graemlins/spade.gif[/img],6 [img]/images/graemlins/heart.gif[/img]

PRE-FLOP
x folds
x folds
x calls $0.50,
x calls $0.50,
Hero calls $0.50,
x checks,
Villain calls $0.50,
x calls $0.25,
x checks.

FLOP [board cards 8 [img]/images/graemlins/club.gif[/img]4 [img]/images/graemlins/spade.gif[/img]A [img]/images/graemlins/diamond.gif[/img] ]
x checks,
x checks,
x checks,
x checks,
Hero bets $3,
x folds,
Badguy calls $3,
x folds,
x folds,
x folds,
x folds.

I bet my draw for some added deception if I hit.

TURN [board cards 8 [img]/images/graemlins/club.gif[/img]4 [img]/images/graemlins/spade.gif[/img]A [img]/images/graemlins/diamond.gif[/img]5 [img]/images/graemlins/spade.gif[/img] ]
Hero bets $8,
Villain calls $8.
nut straight with a nut flush redraw (anyone not bet pot here?)

RIVER [board cards 8 [img]/images/graemlins/club.gif[/img]4 [img]/images/graemlins/spade.gif[/img]A [img]/images/graemlins/diamond.gif[/img]5 [img]/images/graemlins/spade.gif[/img] 7 [img]/images/graemlins/club.gif[/img] ]

The pot stands at $25. How much do I bet in this spot? What is my opponent likely to be holding?
TO beat my straight he must either have 5679 or have gutshotted the flop or turn bet so Im not very worried.
Would you have played any different earlier in the hand?