Raise the river? Nut straight w/ 3-flush on the board in huge pot

[beset7]

Only one that worries me is SB who is a 27/5/1. The rest are donkus maximus. Table is off the hook. Comments on flop raise and river raise? I raised the river because I didn't think SB would go nuts on the turn with just the FD. MP2 is retard 60/2/2 or so and his range is super wide. A set or two-pair are just as likely as a FD. But he did limp/cap preflop so... Terrible river raise?

Party Poker 2/4 Hold'em (10 handed) pokerhand.org hand converter

Preflop: Hero is CO with Q[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img].
UTG calls, <font color="#666666">3 folds</font>, MP2 calls, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, SB calls, <font color="#CC3333">BB 3-bets</font>, UTG calls, <font color="#CC3333">MP2 caps</font>, Hero calls, SB calls, UTG calls.

Flop: (19 SB) J[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, UTG checks, <font color="#CC3333">MP2 bets</font>, <font color="#CC3333">Hero raises</font>, SB calls, UTG folds, MP2 calls.

Turn: (12.50 BB) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">MP2 raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">SB caps</font>, MP2 calls, Hero calls.

River: (24.50 BB) 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, MP2 calls, <font color="#CC3333">Hero raises</font>

Edit: Note, also, the action isn't clear, but BB gets all-in on the flop and everything after that is a sidepot.