Math Problem and Need a Pro!

Question

I need a math person that is good with numbers to work with me on this data and post a spreadsheet to help get this out.
The latest proposed economic stimulus package is going to cost the us 1.2 trillion dollars with interest, if the us used this 1.2 trillion dollars in part to pay each household one years income based on their prior years tax return . How much will it cost?
I think we all need to know this info and raise h**l with our authorities.
I am willing to blog it everywhere, anyone interested in helping?
I will be glad to offer more links if needed?
http://wiki.answers.com/Q/How_many_households_are_in_the_UShttp://www.google.com/search?hl=en&q=+1+trillion+divided+by+100+million&btnG=Google+Search&aq=f&oq=http://en.wikipedia.org/wiki/Household_income_in_the_United_States