200NL cash inside straight flush draw turn - bet or check?

[Vinetou]

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

Hero ($201)
BB ($394)

Preflop: Hero is Button with Q[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Hero raises to $6</font>, BB calls $4.

Flop: ($12) 9[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $8</font>, BB calls $8.

Turn: ($28) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $18</font>, BB calls $18.

River: ($64) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

Final Pot: $64

On the turn - do you prefer a bet or a check? I think a bet here is all right especially when I am not afraid of a checkraise by villain. It builds a pot with an inside straight flush draw but it turns my middle pair on the flop into a bluff. Also, I think I played very weak by checking on the turn. When he called me a second time, I put him exactly on a nine (I was right) and a pot sized river bet would probably push him off a hand. I took like half a minute to check river and I regret it. I have to work on turning my hands with showdown value into a bluff.

However, what do you think about turn bet? Do you prefer a check or a bet?