Am I too conservative/passive here? 25NL full ring

[SuperHans]

Whenever I'm in this position, I always seem to play the hand this way.

FullTiltPoker Game #1994958688: Table Ballinger - $0.10/$0.25 - No Limit Hold'em - 17:06:34 ET - 2007/03/15
Seat 1: mrfree1985 ($20.70)
Seat 2: Hero ($44.30)
Seat 3: WineLips ($7.80)
Seat 4: Winderkin ($33.55)
Seat 5: Talle ($24.75)
Seat 6: PONYEXPRESS50 ($6.60), is sitting out
Seat 7: PFunke ($60.55)
Seat 8: BOOOLER ($18.40)
Seat 9: RED PURCH ($19.75)
mrfree1985 posts the small blind of $0.10
Hero posts the big blind of $0.25
The button is in seat #9
*** HOLE CARDS ***
Dealt to Hero [Qc Jc]
WineLips calls $0.25
Winderkin folds
Talle folds
PFunke folds
BOOOLER folds
RED PURCH calls $0.25
mrfree1985 folds
Hero checks
*** FLOP *** [6c Ks 7c]
Hero checks
WineLips checks
RED PURCH bets $0.85
Hero calls $0.85
WineLips folds
*** TURN *** [6c Ks 7c]
Hero checks
RED PURCH bets $1.50
PONYEXPRESS50 has returned
Hero has 15 seconds left to act
Hero folds
Uncalled bet of $1.50 returned to RED PURCH
RED PURCH mucks
RED PURCH wins the pot ($2.45)

Villian's pokertracker stats(if you're into this sort of stuff): VPIP of 37.11, pfraise of 9.28 and total aggression factor of 0.56 after 97 hands.

I don't like betting the flop here when I'm first to act, because if I get a caller I don't want to be firing again on the turn without a made hand.
Should I be betting the flop and trying to take the hand down right there? Take into account the villain's stats and the stakes.

How was the fold on the turn? I reckoned that I wasn't getting the odds (both actual and implied) on hitting the flush, yet in this situation I always have a feeling of regret right after I fold. Would the villain have called a bet on the river if the flush card hit, and if so, how big of a bet?
Is it just a case of moving on and waiting for a better opportunity or could I have played it better?

Cheers.

[Yenool]