Chops to Forbes, they name the names and show the dollars.
Find the list here: http://www.forbes.com/lists/2010/10/billionaires-2010_The-Worlds-Billionaires_Rank.html
It's from March, but a good list - pretty sure none of em are on welfare yet.
Mebbe I get some time, I'll copy the names. Meantime, enjoy,