Have a bit of history with villain, we played this pot about 5-6 orbits before the hand in question.
Poker Stars, $20 + $2 NL Hold'em Tournament, 150/300 Blinds, 25 Ante, 9 Players
LeggoPoker.com Hand History Converter
BB: 14,418
UTG: 5,152
UTG+1: 6,036
UTG+2: 18,955
Hero (MP1): 12,873
MP2: 12,320
CO: 12,742
BTN: 10,672
SB: 24,306
Pre-Flop: (675)

dealt to Hero (MP1)
3 folds, Hero raises to 810, MP2 calls 810, 4 folds
Flop: (2,295)

(2 Players)
Hero bets 940, MP2 raises to 1,959, Hero calls 1,019
Turn: (6,213)

(2 Players)
Hero checks, MP2 bets 2,985, Hero calls 2,985
River: (12,183)

(2 Players)
Hero checks, MP2 checks
Hero showed
MP2 mucked
He's been pretty aggro, been quite active 3 betting playing about 24/15/10 he's on my direct left and the rest of the table has 2 or 3 solid (ish) players and some donkies other than myself. edit he's 10 tabling all med stakes donkies.
So, flop decision.
PokerStars Game #48426870291: Tournament #326010395, $20+$2 USD Hold'em No Limit -
Level X (300/600) - 2010/08/20 19:38:15 WET [2010/08/20 14:38:15 ET]
Table '326010395 64' 9-max Seat #2 is the button
Seat 1: lonkay (22547 in chips)
Seat 2: JohnnyB39 (12073 in chips)
Seat 3: The Yox88 (8686 in chips)
Seat 4: UPPERHAN1 (10980 in chips)
Seat 5: beaneh (9550 in chips)
Seat 6: PureSickness (14878 in chips) Seat 7: Horse93 (22632 in chips)
Seat 8: JoeriP (23707 in chips)
Seat 9: eljay42 (22031 in chips)
lonkay: posts the ante 50
JohnnyB39: posts the ante 50
The Yox88: posts the ante 50
UPPERHAN1: posts the ante 50
beaneh: posts the ante 50
PureSickness: posts the ante 50
Horse93: posts the ante 50
JoeriP: posts the ante 50
eljay42: posts the ante 50
The Yox88: posts small blind 300
UPPERHAN1: posts big blind 600
*** HOLE CARDS ***
Dealt to beaneh [

Ah]
beaneh: raises 750 to 1350
PureSickness: calls 1350
Horse93: folds
JoeriP: folds
eljay42: folds
lonkay: folds
JohnnyB39: folds
The Yox88: folds
UPPERHAN1: folds
*** FLOP *** [

]
.....?