LOL, It isn't the first time I heard that remark...I am sure it won't be the last either.

XP home OEM...$99 free shipping and I have been using these guys for years in buying computer parts.

Microsoft Windows XP Home Edition OEM at 3B Tech - Buy computer parts, notebooks, desktops, & home electronics

XP Pro OEM 149.00 free shipping!

Microsoft Windows XP Professional OEM at 3B Tech - Buy computer parts, notebooks, desktops, & home electronics
***********************************
little better price with free shipping

xp pro OEM
Newegg.com - Microsoft Windows XP Professional With SP2C - OEM

XP home OEM
Newegg.com - Microsoft Windows XP Home With SP2B 1 Pack - OEM

You might have to purchase some qualifying hardware to get these products.

A new DVD/CD burner would qualify

Good Luck!