Really crazy betting on this hand and I may have gotten timid

[Sidekick]

Table is running just over 30% of the people seeing the flops. Average pot on this table is running about $7-$8 up to this point. (This was the loosest and highest betting table at the $0.50/$1.00 limit when I joined it.)

Reads: MP1 is a little loose preflop calling and raising standards but about average player for this limit other than that. MP2 is showing all the signs of being loose aggressive. SB is a solid player (haven't ever seen him play anything other than a solid hand except when he's the BB and gets to play for 'free').

I've been at this table about 45 minutes and it has been a fairly typical PS table. No maniacs betting any 2 crap cards and raising anything just for grins and chuckles. I've seen some of the players playing some weaker hands, but no completely mind boggling plays.

Only 1 other time have I been in a hand where the betting went wild like this and and in that hand I had misread the board (badly unfortunately). So, the betting going wild kind of threw me when I know at least 2 of my opponents are reasonable players.

I am unsure if I was too aggressive or if I wasn't aggressive enough due to how the betting went. By the turn I was unsure if MP2 had managed to hit trips or flopped 2 pair or something else, but I was perplexed and grew cautious by him betting so strongly.

All comments on this one are greatly appreciated.

PokerStars 0.50/1.00 Hold'em (10 handed)

Preflop: Hero is UTG+1 with A[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/spade.gif[/img].
UTG folds, <font color="CC3333">Hero raises</font>, UTG+2 folds, MP1 calls, <font color="CC3333">MP2 3-bets</font>, MP3 folds, CO folds, Button folds, SB calls, BB calls, <font color="CC3333">Hero caps</font>, MP1 calls, MP2 calls, SB calls, BB calls.

Flop: (20 SB) 2[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/spade.gif[/img] <font color="blue">(5 players)</font>
SB checks, BB checks, <font color="CC3333">Hero bets</font>, MP1 calls, <font color="CC3333">MP2 raises</font>, SB calls, BB folds, <font color="CC3333">Hero 3-bets</font>, MP1 calls, <font color="CC3333">MP2 caps</font>, SB calls, Hero calls, MP1 calls.

Turn: (18 BB) 6[img]/images/graemlins/diamond.gif[/img] <font color="blue">(4 players)</font>
SB checks, <font color="CC3333">Hero bets</font>, MP1 folds, <font color="CC3333">MP2 raises</font>, SB calls, Hero calls.

River: (24 BB) A[img]/images/graemlins/heart.gif[/img] <font color="blue">(3 players)</font>
SB checks, <font color="CC3333">Hero bets</font>, <font color="CC3333">MP2 raises</font>, SB folds, <font color="CC3333">Hero 3-bets</font>, <font color="CC3333">MP2 caps</font>, Hero calls.

Final Pot: 32 BB