Curtains: flop decision

[45suited]

Play along this hand. What's your flop action?

PartyPoker, Big Blind is t100 (7 handed) Converter on pregopoker.com

UTG (t1045)
UTG+1 (t955)
Hero (t2670)
CO (t905)
Button (t760)
SB (t550)
BB (t3115)

Preflop: Hero is in MP1 with T[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img]
<font color="gray">UTG folds</font>, <font color="gray">UTG+1 folds</font>, <font color="red">Hero raises t275</font>, <font color="gray">CO folds</font>, <font color="gray">Button folds</font>, <font color="gray">SB folds</font>, BB calls t175

Flop: (t600) 3[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/club.gif[/img] (2 players)
BB checks, Hero ???