I would recomend, like others, a 250g HD for storage. The problem with filling up the raptor first is that you're going to have a bunch of "storage type" stuff on it that will ultimately slow it down or make it less efficient after you have run out of room on it. Meaning, get a storage drive now, save just programs on the Raptor, and everything else on the storage, so the programs & OS are all running extremely quick.