99 sflush draw against very very loose villain

[boondockst]

OK! Since that was so interesting...

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) converter

SB ($99.00)
BB ($20.00)
UTG ($22.60)
MP ($139.00)
CO ($106.13)
Hero ($110.80)

Preflop: Hero is Button with 9[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/club.gif[/img]. SB posts a blind of $0.5.
<font color="#666666">1 fold</font>, MP calls $1, <font color="#666666">1 fold</font>, Hero calls $1, <font color="#666666">1 fold</font>, BB checks.

Flop: ($3.50) 7[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">MP bets $1</font>, Hero calls $1, BB folds.

Turn: ($5.50) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">MP bets $8</font>, Hero ???