That's quite the system! Seems like you could use one of these
ThinkGeek :: The ThinkGeek 8-bit Tie . I couldn't even tell you what my system consists of, off hand, as it has several parts from other PCs, and is going on 8 years old. I've always worked with SCSI drives, SATA is new to me but I have heard of SAS, just never followed up. I know that the case - used to be white! My first box was a Commodore 64. My last box, a Pentium 133, lasted me nearly 9 years, until Windows 98 came around, and I had nothing but problems. Should have kept 95.
I did ask about the seat, they said it'll take close to a month to come in. I told them that there had to be one similar in a vehicle on their lot and to install that. We'll see how it goes next week.