Looking for good, downloadable, Word & Excel Tutorials

Are there any good and relatively inexpensive ($25 or less) downloadable tutorials for MS Word 2000 and Excel 2000?
I use Word on a somewhat regular basis, but there’s still a things I’d like to learn about it.
I haven’t used Excel much, and when I use a spreadsheet program, it’s usually from MS Works, which is very similar, but I use it even less than Word and have that I’d like to learn about it.

I’m looking for an interactive tutorial. There’s MS Office Tutorials which looks OK, but isn’t interactive. I’m concidering MICROSOFT OFFICE 2000 TUTORIAL WORD EXCEL - REF#239 from eBay, even though it’s in eBook format, but would like to see if there’s anything better I can get.
Thank you.