I understand that if I wanted to get a SSD (such as the Vertex 2), I would need to enable AHCI in the BIOS. However, I have pullout chasses in my PC which allow me to swap in and out about 7 different hard drives that I use for various data storage. I also have one hard drive which is an XP boot and another which is a Windows 7 boot. I am currently using plain old SATA in the BIOS. Can anyone please explain what effect turning on AHCI would have to my system? Would I still be able to access the data disks? Would I still be able to boot off the bootable disks? Thanks!