Couple questions as I consider my current Mac pro 1,1 and potential future upgrade. Current 2 x 3.0 dual core, 12gb ram, ati 5770, apple raid card with 3 x 2TB raid 0, two ssd in lower optical bay , one for boot and one to write to. Question: will the MAXPower RAID mini-SAS 6G-1e1i card for example be an upgrade for me? I'm confused on the capabilities of my express card bus and the capabilities of the apple raid card. Can I make this machine function at sata III speed? Is pic 2.0 the standard? Other numbers to consider?