First of all, I'm not very keen about the AMD Athlon XP. I really don't want to use that. If I wanted to use an AMD, I would use an Athlon 64 or a Thunderbird (old).
However, I have an old Celeron on Socket 370 running at 800 MHz. I'm thinking that I should just strip that machine for parts and get a Tualatin motherboard. Then simply, I can get a Pentium III on Tualatin core. Plus, my Celeron has 512 MB RAM. Any suggestions or what?