I currently use a 2nd gen drobo to hold my iTunes, i have 2X 2TB and 2X 1.5 TB for a total of 4.5TB of storage, i currently have about 3.5TB of that filled up with media storage. My Drobo is getting up there in age and today it looks like a drive failed so its in the process of protecting the data which it says will take 72 hours... I have all of the data backed up across several externals and but i have heard some horror stories about drobo going wrong. Since i have a mac pro i have the 3rd and 4th hard drive bay free and was thinking maybe for speed and some more peace of mind i could do a raid 0 with 2X 2TB discs giving me 4TB of storage space. I would than just use the drobo to backup of the iTunes data. I have never used a RAID 0 before and just worry about failing drives. I haven't had a drive fail in about 4 years with the exception of today but it still worries me to risk 2 drives for 1 set of data. The increased speed would be nice though. I wish 4TB discs were a little more affordable and i would just put 2X 4TBs in there with a RAID 1 Any ideas?