mischief, what kind of mouting plate mods did you need to do to get the six drives in? Just wondering what you used to hold the drives in place and such. Also, which tower did you do this to? I am trying to think of what I will do to my next tower. I can easily see mounting five hard drives inside a G4 without any mods, other then putting one where a zip drive can go.
I would, personally, use the 160GB drives along with the ATA133 RAID controller, since those are available in ATA133. That would give you 640GB in two drive volumes (stripe each pair, for performance

). Then use another ATA133 card, and put another 160GB drive where the zip would go... Total space: 800GB

... eat THAT peecee's.... LOL
The entire install shouldn't take any more then 15 minutes (installing the drives and cards), and maybe another 15-60 minutes to set up the volumes are you desire. That includes the formatting and setting up the RAID card.
Thing is, who would need that much storage space on the tower?? I can see the wanting of it, but unless you are creating a feature length movie, who would REALLY NEED it??? It would give you good bragging points, until someone does one better

(someone always does).
Anyone happen to know when larger drive's will be getting released??? I would be thinking of something like 180GB, 200GB and larger.