de_chateau
cs_compound
de_port
cs_office07
de_cpl_fire (always been my least fav of the cpl maps)
cs_assault_2005 (already have assault)
de_vegas_css (good for wcs but i feel it's a bit big for pub)
de_inferno_fog (_pro is much better imo)
de_tuscan (95% a cpl_mill remake)

those are what i'd cut. of those though, the only one i'm on the fence about is chateau. i've never really liked it, feel like the bombsites are way too far apart, but some people like it.