Like Mr-Me-II says there are other options like pci, pci express, firewire & usb the cheap easy way is to use add on cards like 1 of these
I've got 8 HDD's (4SATA & 4IDE) and 2 DVD writers in my box. I run the 2 DVD writers on a ATA/133 IDE Controller PCI Card. Works like a charm. You can also get a IDE 2 SATA converter (if you have spare SATA connections)
or you can just combine some of the above to suit your needs
