folding a set?

[enkel1]

Second hand of live ~$100 MTT tourney with 41 players. Our table is 11 handed.

Blinds 25/50, all stacks 4000 except mine (3975). First time i'm at a table with villian.

Villian raises to 200 in MP
MP+1 calls
MP+2 calls (this guy likes to gamble early)
Hero calls on button with 77
Blinds fold

Flop: QJ7 rainbow

Villian bets 600, MP+1 folds, MP+2 calls, I think for 10 seconds, announce raise and make it 1800 to go.

Villian announces raise, puts in the call, counts his chips, and then pushes all-in, MP+2 folds.

Hero????

I'll post my thought prosess and results later.

(no read harrington and call post, ive read it)