Mid-pair in mid level

[11t]

I was just wondering what people though about my line here.

Villain is semi-donkish and pretty loose with his starting requirements. His bet would indicate the flop somehow matches his hand, but I would discount 88/99 to some extent since most open up with that hand when it is folded to them.

PokerStars No-Limit Hold'em Tourney, Big Blind is t100 (8 handed) converter

MP1 (t1960)
MP2 (t1170)
Hero (t2095)
Button (t1665)
SB (t1507)
BB (t1055)
UTG (t1343)
UTG+1 (t2705)

Preflop: Hero is CO with 7[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, MP1 calls t100, MP2 calls t100, Hero calls t100, <font color="#666666">1 fold</font>, SB completes, BB checks.

Flop: (t500) 5[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, BB checks, <font color="#CC3333">MP1 bets t200</font>, MP2 folds, <font color="#CC3333">Hero raises to t1995</font>