No. I'm totally MS-free and intend to stay that way.
For Office apps, all I need are a text editor (Xnotes or Text Edit in Aqua, Nedit in X11) and a word processor (AbiWord, but KWrite is okay too). If I ever need a spreadsheet or database I'd use the KOffice ones.
I used AppleWorks in OS 9, but now that I know exactly what sort of apps I need, I have found free apps that work well for me.