First thing, I would throw one H*LL of a party!!!
The next day I would definitely quit my job (HATE it!), pay off the house, get out of debt, take a trip to see friends in Guam (stopping off in Japan and Australia), then finish the basement and get the deck on and start a small animal rescue. Can you tell I've dreamt about this for a while now?
Some would go to my church and other charities, then what is left would be invested.