cloning big fragments - (Jan/19/2005 )

hi!
i'd like to know if someone of you know a good vector in which i can clone big fragment (from a digested plasmid). with big i mean 15-20 kb!
no lambda please!
thanks
d

i used a fosmid vector...copy control fosmid library production kit from epicentre... i tried using bac but way too complicated for me...