Most machines have the PATA IDE interface still. It could be simple but since you forgot to name the make/model of the machine no one can tell you to "do it."
I bought a new computer this weekend and it has an SATA hard drive. I have an eide harddrive that I would like to add to the new computer. How hard is it to add set up an eide controller card in a PCI slot? I know putting the card in is easy, it's the setup I wonder about. Thanks.