Nano-limit Stars: Take the free card?

[checkmate36]

PokerStars 0.10/0.20 Hold'em (10 handed) internettexasholdem.com

This is my first orbit at this table so no reads worth mentioning.

Preflop: Hero is Button with 8[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/club.gif[/img]. CO posts a blind of $0.10.
<font color="#666666">4 folds</font>, MP2 calls, MP3 calls, CO (poster) calls, Hero calls, SB completes $0.05 (All-In), BB checks.

Flop: (7 SB) T[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(6 players, 1 all-in)</font>
BB checks, MP2 checks, <font color="#CC3333">MP3 bets</font>, CO calls, <font color="#CC3333">Hero raises</font>, BB calls, MP2 calls, MP3 calls, CO calls.

I raised so I could take a free card should I need one.

Turn: (8.50 BB) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(6 players, 1 all-in)</font>
BB checks, MP2 checks, MP3 checks, CO checks, Hero??