5-5 Q9s Flop Play

[Huskiez]

First time playing at a casino (Harrah's in IN), and it was a fun time. Here's a hand which came up against a friend of mine who I went to the casino with.

The table is around 9 handed, but the main opponents (positions are approximate) are:
UTG (1000+): pretty tight conservative player
MP1 (400): my friend, who's TAG, 2+2er
MP3 (1000+): weak tight player
SB (1000+): loose calling station, will chase longshots and stay in with horrible holdings

I bought in for around 450 and have built it up to about 650.

Hero is dealt Q [img]/images/graemlins/diamond.gif[/img] 9 [img]/images/graemlins/diamond.gif[/img] in BB.

UTG limps, MP1 raises to 25, MP3 and SB call, I call as I would be shocked if UTG limp reraises, and I figure I might have be able to crack someone's stack if I hit the flop hard. UTG calls.

Five to the flop for $125.

So as the flop is dealt, I try to study the expression of MP1. He doesn't give anything away, and I notice that SB checks, so I blind check without looking at flop, and willing to act after seeing how MP1 plays the flop. I pretty much expect a pot bet though.

UTG checks, MP1 bets $100, MP3 folds, SB folds, and it's on me.

I look down at the flop, and see 8 [img]/images/graemlins/diamond.gif[/img] 7 [img]/images/graemlins/diamond.gif[/img] 4 [img]/images/graemlins/club.gif[/img].

What is your move?

Preflop call okay?

Did I give too much up by blind checking?