I'm about 70% full now and I've decided that if I get close to 100% I'm going to do an audit and start getting rid of what I might not listen to a lot...

My empeg is choke full and I plan to add a 30GB Travelstar RSN, but I prune only things that I positively dislike. For me, half of joy of listening to empeg is in 'discovering' music you barely knew you had. Now, mere 18GB is not enough for this to happen often, and hundreds of CDs are waiting their turn, so it will soon be time to give a friend who sells PC-related stuff a call....