First, I'd build a new house with a dedicated home theater room that would seat me and my 20 best friends, as well as an attached 12 car garage that I'd fill with a new Cobalt Blue 996 Twin Turbo, a Marina Blue '67 427/400 hp Corvette Convertible, an Aston Martin Vanquish, a '69 Shelby GT500 Convertible, a 440 6 pac '71 'Cuda Convertible, a 427 Shelby Cobra, a Ferrari 575 Maranello, etc. I'd also buy a Prevost bus and attached matching trailer to trailer the vintage race cars I'd own to Road Atlanta, Road America, and would take my best friends along with me.
Second, I'd take my entire family on a trip around the world, and would pay off all their debts and set them up for life as well.
Third, and most importantly, I'd devote the rest of my life to helping those less fortunate than myself. My wife is on the board of the Susan Gray School at Vanderbilt University that helps and schools Down's Syndrome children. Those kids, and many other children with rare and untreatable diseases (as well as those who've been emotionally and physically abused), need our help desparately, both financially as well as emotionally. I can think of nothing better than helping these children realize their dreams, or at least helping to make their life have some meaning again.