You might want to check out Staroffice from Sun, it is supposed to work with the same file formats as MS Office I believe, I've never tried it out myself though.
http://www.sun.com/staroffice
I'm having a wierd problem with Linux right now. Redhat 5.2 worked pefectly fine on my computer, but the new versions of Redhat and Mandrake won't pick up my ethernet card no matter how much I try. PlugNPlay ISA cards seem to cause a lot of trouble. But I do like Linux a lot, when it works.