Delete your porn? Hell no!!!!. Sift through and delete stuff you don't look at anymore but don't delete it all. Also invest into 1TB external hard drive. Lot's of room then.
My own advice is don't keep anything really good on any kind of hard drive... drives can fail. Have lost tons of good shit when drive died or power supply went nuclear and fried my hard drives. Now I always burn it onto DVD-R (sometimes onto two DVD-Rs if it's something I know I'll reget if one DVD-R went bad for some reason).
