Full Tilt No-Limit Hold'em, $0.50 BB (8 handed) Full-Tilt Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG ($22.75)
UTG+1 ($125.65)
MP1 ($17.90)
Hero ($104.55)
CO ($52.50)
Button ($29.90)
SB ($25.90)
BB ($64.25)

Preflop: Hero is MP2 with A, J.
3 folds, Hero raises to $2, 2 folds, SB calls $1.75, 1 fold.

Flop: ($4.50) A, 9, 2 (2 players)
SB bets $2.5, Hero ... ?

Villain is 20/0/1.5 over 86

What's the best way to extract value from this hand? My first inclination is to raise it up...but then I got thinking -- what cards am I scared of falling on the turn? What cards would scare him off? A third club might sure, but I doubt he'll continue to my raise without the FD or an ace. On the other hand, he doesn't look like a spewtard, so maybe there's no point in trying to let him bluff & I might as well try and get it in on the flop.

hrmmm...?