I am thinking of reripping my cd collection to 320k from my old 128k. I have about 300 CDs to rip, which would take a bit of time with 1 drive. How many optical drives could I use simutaneously so I can rerip my music. I do have a total of 4 drives I could put in my tower, plus 1 external firewire drive. So what number of drives could I use for maximum ripping speed.