Probably another Mr Obvious post. Normally I'd push with K8s with such blinds, but didn't want to call this. Thoughts? Difference if K8o? Difference if Button raised, and SB folded?

Button ($5,078 in chips)
SB ($4,284 in chips)
Hero ($5,638 in chips)

Hero dealt [8[img]/images/graemlins/club.gif[/img],K[img]/images/graemlins/club.gif[/img]]

ANTES/BLINDS
Blinds $500/$1,000.

PRE-FLOP
Button folds, SB bets $3,000, Hero?