My biggest hand to date, should I even have been involved?

[ajmargarine]

Game is a fishtank. Critiques welcome on preflop and flop play. I think preflop might be OK?!? And on the flop, I played that with my eyes closed while holding my breath, but I think it was the right line, no?

Hero ($210)--bought in $250, lost previous hand AQ vs all-in shorties 77, didn't reload yet.
MP1 ($650)
MP2 ($550)--big fish
CO ($166)--average player: if I set up, won't be able to let go of TP or overpair.

$1/$3 NLHE 8-handed (1/3 blinds, $6 is minbet on turn)

Preflop: Hero is UTG with 6 [img]/images/graemlins/club.gif[/img] 6 [img]/images/graemlins/heart.gif[/img]. SB posts a blind of $1.
Hero calls $3, 1 fold, MP1 calls $3, MP2 calls $3, CO raises to $18, 3 folds, Hero calls $15, MP1 calls $15, MP2 raises to $36, CO calls $18, Hero calls $18, MP1 calls $18.

Flop: ($144) 6 [img]/images/graemlins/diamond.gif[/img] 3 [img]/images/graemlins/heart.gif[/img] 2 [img]/images/graemlins/spade.gif[/img] <font color="blue"> (4 players) </font>
Hero checks, MP1 checks, MP2 bets $31, CO pushes all-in for $130, Hero calls $130, MP1 folds, MP2 calls $99.

Turn: ($534) 8 [img]/images/graemlins/club.gif[/img] <font color="blue"> (3 players, 1 all-in) </font>
Hero pushes all-in for $44, MP2 calls $44.

River: ($622) 9 [img]/images/graemlins/diamond.gif[/img] <font color="blue"> (3 players, 2 all-in) </font>

Results in white:

<font color="white">Hero shows 66, three of a kind sixes
MP2 shows JTo, for Jack high.
CO shows JJ, for one pair of Jacks
Hero scoops the biggest pot he can remember taking down, $622</font>