There's no reason not to be happy with 2000. It was their best effort.

I just upgraded my computer from W7 to XP. Way faster, software just installs with no 4 hour battle, in general things just work.

While I like office 97 best, 2003 was their last good version.

Ebay has originals for sale. Watch out for the oem versions, which most will be. Go for the "retail" cds. Of course, avoid the myriad copies...