i've had a lot of time to think about this.
i'd keep the house i'm in at the moment. definately. i'd buy the house (empty) on the side of my house though, keep the house intact, but put a 20 car garage in the back (with my own gas station, mechanics, etc.). i'd then buy a lot of cars i've always wanted to buy, such as a 2003 bentley, ferrari, viper, and older cars, like 1974, 1959, and 1960 cadillacs.
the cars done, i'd put everything left of my "fortune" in a highly expensive and highly secure safe deep in the ground. probabaly with a dedicated security system, and 10-15 foot thick steel walls. that's like 5 million dollars+ right there. however, i'd keep 15 million dollars in different banks, and i'd live off the interest (approximately $1,000,000 a year).
i dunno what else i'd do