I'm a leader of a really new clan (to be honest, all the members are simply my friends from a site that I'm an everyday member of (I talk with them on IRC every day) so they're not really that good, simply like to have fun)...
So yeah, I play CS:S quite often, considering it's the ONLY game I play right now.
cs_office and cs_italy are my two favorite maps. de_train is pretty good too.