>How easy of an upgrade is it? Someone mentioned to me that W2K Pro requires a re-format.
>
>

No, it is not necessary - Win2K Pro can run on FAT32. However it is recommended to convert it to NTFS so that you have one additional level of security. (the convert to NTFS will not destroy your data, there is build-in command-line tool CONVERT in Win2k for this task)

Regards