I needed two IDE hard drives to fill my OWC Mercury Elite enclosure. Initially I was looking to configure the drives in a RAID 1 configuration so I bought two identical drives. The RAID 1 setup was a failure, but I was still able to use the two drives in a single drive configuration. I was using the enclosure with a Mac Mini, which was housed, in my entertainment unit. For this reason, I was looking for some drives that were relatively quiet. Also I was looking for something that had adequate speed. I was using them to backup the Mac Mini and my Powerbook G4 as well as a few websites I host offsite. I had recently purchased a Seagate 160GB 7200RPM IDE drive for a PC and was pretty happy with it. It was relatively quiet and quite fast. I was lucky enough to find a deal on the Seagate 300GB ST3300622A 7200.9 IDE drive. It was on sale at Fry’s/Outpost.com for $139.99 with a $50 mail in rebate bringing the cost down to $89.99. I usually don’t mind rebates as long as I get the money back.