50/100 Commerce River Decision

[Dakine69]

I have played with villian 4 or 5 sessions-
He is loose preflop, calls raises out of position often.
postflop:
calling station (will call with or without proper odds for draws,etc.)
slow plays
capable of check raising made hands and bluffs on all streets. Basically, hard to put him on hands.

I think villian perceives me as a tricky solid player (I have moved him off of overpairs and shown in the past)
Villian has around 10k and I cover

folded to me in mp and I raise to 400 (standard raise for me) with 3 [img]/images/graemlins/spade.gif[/img]6 [img]/images/graemlins/spade.gif[/img]

only villian calls in small blind

flop: 2 [img]/images/graemlins/heart.gif[/img]4 [img]/images/graemlins/diamond.gif[/img]5 [img]/images/graemlins/club.gif[/img] pot:900

villian checks and I check behind. villian could have anything but most likely nothing and I want to string him along

turn: A [img]/images/graemlins/heart.gif[/img] Villian checks and I bet 600.
Villian miniraises 600 more. I reraise to 2600 and villian thinks for a short bit and calls 2000 more.

river: 4 [img]/images/graemlins/spade.gif[/img] pot: 7300
Villian checks pretty quickly, hero???

Results and thought process to follow