Hmmmm...
First off, give 10 mill to my parents and let them do what they wish with it.
2. Give at least a million to my chapter for house renovations...redo the wiring, bathrooms, kitchen, and chapter room. I'd also give our house cook a cool 100 grand (but not to the knowledge of our house mom...

)
3). Throw a phat campus party with bouncers, Moby/Paul Oakenfold, and a full bar with a world class bartender. After that, I'd also make sure that we threw the best parties on campus (we've already won grades, homecoming, Anchor Splash etc, etc. so social is the next logical conquest)
4). Give a million to the Kansas Cosmosphere and Space Center, of which 1/2 would go to the education department of which I'm a part of. The other half would go to even more exhibits.
5.) Make an endowment to the Beta Theta Pi Foundation, the University of Nebraska (I might get one of those skyboxes for the house and which ever sorority would be our block that year), the American Cancer Society, the Simon Wiesenthal Center, and some political candidate who most clearly represented my views (which might be really hard to find!)
6.) Build my dream house, or at least make the plans and know that I will just need to find the land....
7). Pay my college bills and set up a trust fund for my kids and grandkids
8.)Buy a condo at someplace like Vail or Beaver Creek or Breckinridge.
9.) Invest the rest in a company that is part of the fabrication of a product called Aerogel. That's my sure fire stock winner in the next 20 years....I promise.