With Fedora 7, I decided to take the plunge and go Linux for my work desktop.
Should be a fun experiment. Already got printers added, email set up and connections to my other servers in place. About the only significant problems I'm anticipating are getting some of my spreadsheets converted over to OpenOffice. I think there are a few that use Excel-specific features that I'll have to work around. It's going to be a slow process that's just going to take some time.
I'm liking what I've got going so far.