You win the USA Power ball for $1,000,000,000 what do you buy first?

I'd probably buy a new house, car, and furniture and stuffs to go with it, and then from there, i'd put a lot of it into investing in company stocks to become a stock holder, from there, i'd buy a mega server that i'd have set in it's own specialized room in the house, and i'd use that to host my own upload/download site similar to MegaUpload in the old days (minus the more-illegally uploaded files at the time).

From there, i'd hire a full-time professional time to start building a new stand-alone OS independent of Linux, Windows, and Mac.