nl50, TPTK, should i check this turn?

[Brimstead]

villain is solid TAG 12/6/3 (480 hands)
i was running vpip 24, tho i think this regular probably has a lot of hands on me, plus he's at 2 of my other tables where i am running 38 and 33. I just 3bet him PF 2 hands before this

should i check this turn? I think i am either way behind a set here or splitting with AK.
If i put him AI am i overplaying this hand?

Poker Stars, $0.25/$0.50 NL Hold'em Cash Game, 7 Players
LeggoPoker Hand History Converter

BB: $51.30
UTG: $51.55
UTG+1: $8.70
MP: $47.20
CO: $28.75
Hero (BTN): $79
SB: $47.05

Pre-Flop: K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/heart.gif[/img] dealt to Hero (BTN)
<font color="red">UTG raises to $2</font>, 3 folds, <font color="red">Hero raises to $6</font>, 2 folds, UTG calls $4

Flop: ($12.75) 9[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] (2 Players)
UTG checks, <font color="red">Hero bets $8</font>, UTG calls $8

Turn: ($28.75) Q[img]/images/graemlins/diamond.gif[/img] (2 Players)
UTG checks, <font color="red">Hero isn't sure what to do</font>


all comments appreciated, thanks [img]/images/graemlins/smile.gif[/img]