BUY HALO 3 (tm Microsoft) and BELIEVE THAT TRUE HEROES WILL RISE IN HUMANITY'S DARKEST HOUR.
Buy Vista too. And make sure you get the Ultimate version. Once you have a videoclip as a wallpaper, you can't go back to pictures. Aero glass is also another indispensable feature. As great as Windows XP was, I feel like I'm using some crappy MAC OS whenever I go back to it.
Buy Office 2007 too. Its new interface might seeem a bit overwhelming for new users but everything is so much more intuitive and efficient than the old Office once you get used to it.
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Am I getting a paycheck this month, Doug?