Okay, so let me see if I got this straight, now is the time to correct anything I say.
I'm not going to keep either of the drives I have in my computer now. True, they'd be good for backup, but I plan on getting a DVD writer soon (hopefully), so that should eliminate the need of the other drives for backups. So, I'll just have the 80, and one partition. So, all I do is take out my existing drives, insert the 80GB, boot up to BIOS, set my CD-ROM drive to be first in boot up, insert the XP CD, reboot, partition and format through there, and then install XP. And, if that I don't reinstall XP, then partition and format through a partition or a included disk with the drive, and then install whatever OS I'm going to install.
Should I put in the 80 immediately after I take out the 6 and 4, or should I boot to BIOS in between?
Does all of that sound right?