Superb site has buttons for most gov programs, so you can up or down spending and see if you can afford some new program to help the poor, or chop the pentagon.
Quickly rejigger the Budget, and see how the deficit reacts.
But join me in asking the owner to add a button for upping taxes, a button he oddly left off. He Seems open to changes.. he asks for ideas.
This site could give joe sixpack the idea that the Budget is fluid, not writ in stone.
National Budget Simulation
http://www.nathannewman.org/nbs/ Much easier to operate than similar sites i have seen.
Related site gives total US wealth of 105 Trillion, bottom line:
http://www.federalreserve.gov/releases/z1/current/accessible/l5.htm