I want to give my machine a checkup. It's a Mac Pro 1,1 I bought in June of 2007, and it's been running strong since. Upgraded to Leopard, then to Snow Leopard, have never wiped the system drive. It has 4 internal drives which all hold different things, and 3 external FW800 drives for backsups. the OS is a 60gb Mercury SSD from OWC. What can I do to give my system a real checkup and cleaning, make sure the drives are good, make sure my system is good, all that? Is Onyx still the way to go? Repair permissions and verify disk? Any other things I can do, scan the RAM maybe for bad sectors?