What would be an ideal diagnostics/ system check up to run? I have Tool Tech Deluxe, Drive Genius 2, and Onyx. I am using a mac pro on leopard with the HD in bay 1 as my Boot drive, applications, library and that is backed up using CCC to a HD in bay 2. Then in Bay 3 and 4 I am using a RAID 1 of my iTunes library. Currently I run all the processing in onyx once a month. I was given Drive Genius and tool tech deluxe came with my Apple care, but I have yet to use either of these programs. Do either of them have a benefit I am not getting from Onyx. Also whenever onyx tells me I need to reset my computer I dont do it until I have run all of the processes, is that okay? I am also tempted to verify my HD and check permissions with disk utility but I have read when I was running tiger that this is not a good thing to do unless a problem is already occurring, does that still hold true with Leopard. I think all of these processes minus disk utility only check my boot HD so is it possible for it to check my other drives as well. The HD's in bay 3 and 4 are only iTunes folders so they might not benefit from any maintenance process.