US lottery: What would you do with half a billion dollars?
29 March 2012 Last updated at 17:06 BST
Lottery fever has swept the United States, where the Mega Millions jackpot has reached an all-time record of $640m (£400m).
In some areas people have been queuing to buy tickets after nobody matched all six numbers in Tuesday's regular draw.
Here some hopefuls reveal what they would do with the dizzying sum of half a billion dollars.