a jump drive won't work for installing an OS, as far as I know. And, I don't know anyone who uses a usb cd rom drive. Even if I did, the system I bet wouldn't recognize it without drivers. :dry:
"Fix it 'til it Breaks."

Jacob - EiC & Director of Technology
Mac Pro Quad 2.66 - 4GB RAM
160 GB SATA RAID 1 - 650 GB Storage
Quad 19" Widescreen LCDs
Accessorized to the Hilt