I have a good CD drive from a Rev A iMac pulled when I upgraded to a CD-RW. I want to convert this CD ROM drive to act as a bus powered USB or firewire drive. Any one have any good ideas? I have seen some cases out there that will allow a standard IDE device to be converted, but nothing like my CD drive. If I cannot make it bus powered, I can work around that, but I need to be able to make this drive USB or firewire.