With a 10G hard disk and system restore and all the patches, that hard disk will be full and you will be very unhappy. My nod is Windows 2000.
I have a Compaq Prsarioo 5000 with 256mb,700mhz intel celeron,Bios:Compaq 686C3,10g HD,and presently running WinME. Would like to upgrade! Given what i have, would WinXP-PRO a better choice over Win 2000