Have you tried Wine?

Wine is -not- a Windows emulator, it runs Windows apps in native mode, so it may take some effort to get the applications to run. I'm a Linux newbie and have Knoppix 3.7. I tried running every Windows app on my system the other day: only 3 or 4 ran well, and unfortunately they were not apps I use alot. I suspect that if I spend some time and set things up properly (copying .dll files to the "fake Windows directory", etc.) I may be able to get more applications to work.

Cedega and Crossover Office are commercial versions of Wine, and although not free, are not expensive either.

Paul