OOP with an overpair on the turn, good line?

[STARSCREAM.]

I've been at the table for probably 100 or so hands. Villian seems fishy, typical 35/10/1 donk. I've been playing about 18/17/3 at this time.

I bet the turn with the intentions of folding to a raise, how is this logic? Also, how is the size of my bet? I figured 50NL players aren't usually advanced enough to get it in against me here figuring i'm weak because I bet only around 1/2 the size of the pot. I also wanted to try my hardest not to commit myself if I didn't deem necessary.

Full Tilt Poker, $0.25/$0.50 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

MP: $28.50
CO: $72.95
BTN: $25.75
SB: $49.50
BB: $60.85
Hero (UTG): $50

Pre-Flop: Q[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/heart.gif[/img] dealt to Hero (UTG)
<font color="red">Hero raises to $2.50</font>, MP folds, CO calls $2.50, BTN folds, SB calls $2.25, BB folds

Flop: ($8) 5[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/heart.gif[/img] (3 Players)
SB checks, <font color="red">Hero bets $6</font>, CO calls $6, SB folds

Turn: ($20) 8[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $12</font>