Villain is a pretty decent LAG. Stats of 28/20

Full Tilt No-Limit Hold'em, $1 BB (5 handed)

Button ($103.70)
Hero ($109.30)
BB ($59)
UTG ($102.30)
MP ($101)

Preflop: Hero is SB with , .
1 fold, MP raises to $3.5, 1 fold, Hero calls $3, BB calls $2.50.

Flop: ($10.50) , , (3 players)
Hero bets $8, BB folds, MP raises to $24, Hero calls $16.

Turn: ($58.50) (2 players)
Hero checks, MP checks.

River: ($58.50) (2 players)
Hero bets $40, MP calls $40.

Final Pot: $138.50


Or should I be leading that turn?