As of a couple of days ago, I was able to retire my Windows box completely. My house is now all Macintosh all the time. (Well, except for the Dell laptop I have signed out from the school. ;-)
Until recently, I needed that Windows machine for only one thing: Quicken, my personal finance software. Earlier versions of Quicken for the Mac had been disappointing, so Windows it had to be. However, Quicken 2005 for Mac has worked out just fine; I'm not importing the old Windows data, I'm starting clean, and keeping the old Quicken data as an archive. So goodbye Windows, hello extra desk space, and thank you Jebus.