I'm using a 9500/200 with a Newertech 300/150 .I'm using two old SCSI external hard drives for audio ONLY, 1 Seagate Barracuda 4.5 and 1 Micropolis 4.5. I forget the seek time but bith turn at 7200 . No problems so far. I also use 2 monitors. I added a viseo card and have whatever I want on either screen. When I'm editing, I have the editing screen on my 20" and the mix screen on my small 13". When I'm mixing, I swap screens. Very Handy ! Of course on a 9500 you add a card, lose a slot. Hope this helps frank