Scary board, TPTK. HELP !!! What to do?

[Huggy]

Full Tilt No-Limit Hold'em, $1 BB (5 handed) Full Tilt Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG ($99.90)
Hero ($159.20)
Button ($110.95)
SB ($98.90)
BB ($51.40)

Preflop: Hero is MP with Q[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $3.5</font>, Button calls $3.50, SB calls $3, <font color="#666666">1 fold</font>.

Flop: ($11.50) Q[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets $8</font>, Button folds, <font color="#CC3333">SB raises to $24</font>, Hero calls $16.

Turn: ($59.50) J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $71.4 (All-In)</font>, Hero ???

I Just called as opposed to shoving flop because i wanted to see if a diamond came on the turn, if one came it would be an easy fold.

Villian is unknwon.