5/10 NL- Semi Deep, Too Many Outs

[AdamBragar]

5/10 NL Online, 10 Handed

I don't have much of a read on the opponent, but get the feeling he is kinda passive and not very tricky.

I have 3 [img]/images/graemlins/spade.gif[/img] 5 [img]/images/graemlins/spade.gif[/img] and raise to 40 in the CO, button (2700) calls, all else fold. I cover him.

Flop: 4 [img]/images/graemlins/heart.gif[/img] 6 [img]/images/graemlins/diamond.gif[/img] 9 [img]/images/graemlins/spade.gif[/img]
Pot: 90ish

I bet 75, he raises to 225, I call.

Turn: J [img]/images/graemlins/spade.gif[/img]
I check, planning to checkraise big, possibly all in. Button checks behind.

River: A [img]/images/graemlins/heart.gif[/img]
I?

Do I bet here, do I just give up on the hand?
Any other comments?