That is just sweet....congrats!
I agree that that kind of money doesn't last long. It seems like a lot of money now, but it's really easy to eat that up redecorating the house and driveway
Personally, I think I would use it to get myself more secure financially ( pay off all credit cards, car payments, etc ) and then throw the rest into a money market account and forget about it.
That way, it's gaining interest, you can still access it like a checking account, but you have it for the occasion when you need a chunk of money ( ie. new roof on the house, furnace dies and needs to be replaced )
I've pretty much figured that if I were given that kind of money, I'd have it blown in a matter of a month or less. For me, the best thing to do would be to not do anything with it until I had a chance to calm down and start thinking rationally again ( and thrown away all the ads from the Sunday paper..........aahhhh, Plasma screen....<drools> )