After experiencing numerous inexplicable problems (not seeing anything connected to the USB ports, not finding the DHCP server, no sound...the list went on and on) trying to get Windows XP running on the home computer (with new e-Bay'ed motherboard), I decided to wipe everything clean and install Fedora 8 on the darned thing.
Wouldn't you know it, everything that wasn't working in Windows worked again. USB, sound, network, the works. It's almost like having a brand new computer. The only problem I ended up having was discovering a few things that got left off the backup I made. Nothing critical though.
Now I need to figure out how to get my PDA syncing, get Quicken up and running, and work on keyboard and mouse mappings.