Here is my current storage setup... Internal iMac drive 1tb Time Machine backup 1.5tb Western Digital USB 2.0 External Media Storage 1tb WD Green attached Via USB with Thermaltake BlacX Dock Here is what I would like to do.... I plan on buying this enclosure ( I am open to other suggestions) http://www.bhphotovideo.com/c/product/575649-REG/PROAVIO_DVB_PRO_dvBOX_Professional_Hard_Drive.html I will be using this as my main media storage (photos, music, movies etc.) I need this to be as fast as possible. I will connect via firewire 800 My main question on this: Should I buy another WD green and use both of those in a Raid 0 config? Or spring for two 1tb Caviar Black drives to use in a raid 0 config? What would the performance difference between two WD Green in Raid 0 vs. Two Caviar Black Drives in Raid 0??? And would the difference be worth having to buy 2 new drives instead of 1? Next... I plan on using my existing 1.5tb drive as external storage for my apple tv and buying this as my time machine backup drive... (again open to suggestions) This one does not need to be fast, just reliable. http://www.bhphotovideo.com/c/product/625843-REG/Western_Digital_WDH2Q40000N_4TB_My_Book_Studio.html Ok guys thoughts???