haha I would so do it. I may bitch a lot, but I could survive. And yes, that is a buttload of money, so it would be worth it in the end. Five years is not an eternity.

I would do it. It wouldn't be easy but I think I could let my greed overcome my lust for awhile.

This quote from Office Space explains what I'd do when the 5 years was over:

Peter Gibbons: What would you do if you had a million dollars?
Lawrence: I'll tell you what I'd do, man, two chicks at the same time, man.

4 billion dollars seems a little more than fair. Even though I'd bet you'd need a whole firm of accountants.