I just ordered the OWC hard drive holder for 2 2.5" hard drives. I noticed my 2009 MP only comes with one plug for 1 drive. Do I need a splitter to plug in both drives? This is how I want to set things up. I would love feedback as well. Drive Bays 1. 128GB SSD - Boot Drive 2. 500GB 7200 2.5" - Scratch Disk + Clone of Boot? 4 HDD Bays 1. 1.5 TB 7200rpm - RAID 0 Master 1 2. 1.5 TB 7200rpm - RAID 0 Master 2 3. 2TB 5900rpm Green Drive - TM 4. 2TB 5900rpm Green Drive - TM This looks like a good setup, but is it ideal for Photoshop work? Also, I am a little worried that this will not be enough room. Aside from the drives above I have 2 more 5900 2TB drives. I also have a 2tb firewire drive, and a 1tb usb drive. I am going into this mac with a little more than 2TB of storage, so I think the 2.7TB Master drive will not be enough. Should I just do TM on an external drive or NAS and have the 4 x 2TB slower drives for my Master? Or will this slow things down at all, specifically in Photoshop? Any advice on how you would tackle this? Thanks!