As I thought, one of the 30 GB hard drives wasn't formatted, so I set the XP Pro installation CD to work formatting the drive and installing itself last night. Every now and then, I'd look in on it and tell it to go on to the next step when appropriate. After it completed the initial installation, I had it go look for updates. There were over 60 XP updates to download and install, a couple of which required reboots. And I needed to download certain current drivers from Dell, which also led to reboots. But when I was done, I had a relatively clean installation on that drive, which may come in handy.
I've had little time to respond to anyone or anything today until a few minutes ago, thanks to upticks in my current project.