Computer Geeks is selling a bundle which includes a generic (at least they don't list a brand but I think it may be a "Superb" brand CD-RW) 48x12x48 CD-RW, a FireWire enclosure (which will fit 3.5" and 5.25" drives, I use this brand enclosure myself and have been very happy), and a 3 port FireWire PCI card. After using DEALSONTHEWEB for a coupon code and ground shipping you are looking at $95.18 for the whole kit.
You can click on the link above for full details but here are some highlights:
FireWire enclosure comes with a 6 pin to 6 pin cable ($20 value)
FireWire PCI card has three 6 pin external ports and 1 6 pin internal port
FireWire PCI card works with PCs only, not Macs
CD-RW is not installed in enclosure but the process is very easy if desired
