I am running a P4 HT desktop, 2.5GB RAM, two interal 160GB HDD and lots of external Seagate USB drives.
I like external drives because it's easy to manage in terms of adding/removing. Yesterday I've added another 1TB drive to the system and might start replacing all those 500GB drives with new 1TB drives.
Here's a screenshot (please keep size down if posting screenshots!)
