oh....well I'd at least make a chair of stacks of ones with hundred bills on all the outside bits that showed. maybe stuff one of those clear air mattresses with gold coins(enough to be fancy but not so many as to prevent its function as an air mattress....probably hire some sort of minion to follow me around too.
Then maybe get a custom tailored suit of armor.
after that who knows...maybe build a castle(a functional actually defensible one not just aesthetic. If the revenue man gets in he deserves that years tax$). I can already fence so next would be riding lessons, a good solid horse, broadsword lessons, archery lessons, jousting lessons. Then maybe if I'm not sick of it I'd somehow find a way to joust for charity and the entertainment of sick children or something.
edit- (alternatively if I
am sick of it
and also money has turned me evil or callous and arrogant I'd kidnap the top fighters in each of their fields(top karate, top fencer ect) and make them fight to the death to get the chance to fight me. if they win they go free with a cash prize from my estate(the rest of my will says "fuck you government you're not getting my stuff just because I have no children...I'm giving it all to fund more firefly and farscape with the rest buried with me...in space")and a signed duel contract releasing them for responsibility in my death..if they loose they get stuffed in my trophy room or whatever the guy in most dangerous game was going to do. if that doesn't bring back the spark nothing will and I'll have to find a new hobby.)
And then something practical... spend some time learning to shoot so I don't die like a samurai.
At that point I'd have the whole castle-house and hidden bunker thing disassembled and flown out to a synthetic island I secretly built in international waters to be rebuilt there. With my own island fortress I would form my own country to rule with an iron fist and repel invading banks looking for an off shore base. Put a big shiny red button on the right arm of my money chair that blows up the floats and sinks the whole thing to the depths in case invaders get the upper hand. Probably invest in some sort of escape pod so I can shout THIS ISN'T THE END i'LL GET YOU NEXT TIME MWAHAHA or something as it sinks.(oh and also buy all the gog games)
Thats what rich people do right?
I really only have video games to go by since I refuse to watch the media crap on what paris hilton does
(i forgot mortal kombat's bad guy was rich and set up the tournament so added that
edit--
wait put all that on the back burner...if I can afford an island fortress maybe I can afford space. If so then first priority is a moonbase. Maybe round up some colonists for a
http://www.space.com/19174-mars-one-colony-astronauts-wanted.html[/url] to live in a dome city I'd build for them. Stick some sort of eula on the oxygen taps to make them sign on to be my subjects and agree to the constitution I drafted up"click this box to accept me as your emperor and god-king of mars y/n" "no/ I'm sorry you cannot use my air supply until you agree retracting air taps. feel free to change your mind" sort of thing.