NL100: Set of 4s on very drawy board

[AlexB182]

Villain is 16/8/1 over 1200 hands, 700 at NL100, rest at NL50. He is losing in the hands I have on him, at (5.3) ptbb.
I'm running at 14/10 so far at this table.

My PF call is questionable, misread raisers stack to be honest. Oh well...
Is checking this river ok, thought FD was in his range here but wasn't really completely sure about his range...
Results later perhaps, all comments appreciated.

Full Tilt Poker, $0.50/$1 NL Hold'em Cash Game, 8 Players
LeggoPoker.com - Hand History Converter

Hero (MP1): $123.10
MP2: $106.95
CO: $108.05
BTN: $98.50
SB: $99
BB: $100
UTG: $15.10
UTG+1: $98.50

Pre-Flop: 4[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] dealt to Hero (MP1)
<font color="red">UTG raises to $3.50</font>, UTG+1 folds, Hero calls $3.50, MP2 folds, CO calls $3.50, 3 folds

Flop: ($12) 4[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/heart.gif[/img] (3 Players)
UTG checks, <font color="red">Hero bets $8</font>, CO calls $8, UTG folds

Turn: ($28) T[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $17</font>, CO calls $17

River: ($62) 5[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero checks, <font color="red">CO bets $45</font>, Hero ?