Thanks for the great advice a4mula! I have asked this question in other forums and did not get a clear answer, such as yours!
I had this PC custom built by CPUSolutions specifically for video-editing. They put my D and E drives in the two SATA III ports on the board. My Velociraptor Hard Drive was the C drive (which I replaced with the SSD). It WAS on a SATA II port. My Windows Experience Index for the "drive" portion has now gone from 7.8 to 7.9:)
I do have one more question, however- If my SSD has a transfer rate around 550mbps, why would a 6gbps port connection even matter? What am I missing? Thanks.
Windows 7 64 bit, i7 980x @333 6 core processor, 12 GB ram DDR 1600, Radeon 5850 GPU, OCZ Vertex 3 120GB SSD