I'm running Windows Vista Ultimate. My current Windows C Drive is a Seagate 160 GB drive. I just purchased a new 500 GB drive, and want that as my main drive. However, once I install it and install Vista, I still want to be able to access the 160 GB, but just not as my Windows drive. Confused yet? lol Basically, what will happen if I connect both of these drives to the motherboard at the same time? Could I go into the BIOS and tell it to load the 500 GB hard drive first, or would that not make any difference?