I think that by October the whole company has to migrate to OpenOffice, and then I think it's by June next year we all migrate to Linux - you don't want to migrate 6,000 people both operating system and office suite in a single jump.
Live all you can; it's a mistake not to. It doesn't so much matter what you do in particular, so long as you have your life. If you haven't had that what have you had?

