200NL - this was supposed to be about my river action

[Gobgogbog]

No reads. So, this post was supposed to be about my river action, as that's where I felt I messed up, but looking back at it I think all postflop streets were probably not played well. Or terribly, whatever.

So, the original reason for this post, was I am wondering in general what to do on the river when you feel you're still ahead after missing a turn c/r. Do you usually go for another c/r? After the hand, I felt a river c/r was clearly correct because it's better against a draw that missed, and because I will sometimes (though rarely) get bluff raised if I lead, and have to fold. I'm obviously losing some value against 1-pair hands, but maybe not as much as I usually think, since it might bet for me after 2 checks anyway (right or wrong?)

PokerStars No-Limit Hold'em, $2 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

CO ($224.15)
Button ($22)
Hero ($757.65)
BB ($212.30)
UTG ($296)
MP ($236.05)

Preflop: Hero is SB with A[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, MP calls $2, CO calls $2, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $12</font>, BB calls $10, MP calls $10, CO folds.

Flop: ($38) 5[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $16</font>, BB calls $16, MP folds.

Turn: ($70) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, BB checks.

River: ($70) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $40</font>, BB calls $40.

Final Pot: $150