What kind of speeds are you getting when copying files from/to the SATA drive? Even if I copy a file from one location to another on the same SSD drive, I get like 2-3MB/sec. I thought this would be MUCH faster than that. I'm not sure if this is normal and if so, which spec of the 9600 causes it to be this slow.

Also, what kind of file copying speeds are you getting from the SCSI drives? It's slower than an SSD for sure, but not by much.