ATo in BB

[Askilus]

Sorry, no good reads.

Party Poker No-Limit Hold'em Tourney, Big Blind is t20 (8 handed) pokerhand.org hand converter

MP2 (t2255)
CO (t685)
Button (t745)
SB (t3080)
Hero (t1185)
UTG (t1150)
UTG+1 (t1265)
MP1 (t615)

Preflop: Hero is BB with T[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#666666">4 folds</font>, <font color="#CC3333">CO raises to t80</font>, Button calls t80, SB calls t70, Hero calls t60.

Flop: (t320) K[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero ...?

I'm not sure what I hoped for when I called this PF, but now this seems like a scary flop, even though I flopped top pair. Weakish thinking? Whats my line?