How little do I need? My desktop is running Vista on an Athlon64 X2 dual core with 3 gigs of ram. There is a whopping 55 gigs of data on the 186 gig HDD. The laptop had its HDD replaced 4 years ago, and it’s mostly empty too.
Like I said, a power user I am not...
What programs do you use? That would give us some guidance.