I would say $300-$400 billion, aimed at least half at infrastructure and state budgets, all to be recouped in the out-years:
David Lawder: Democrats call for massive U.S. economic stimulus plan: WASHINGTON (Reuters) - The United States needs a new economic stimulus plan that pumps billions of dollars into infrastructure projects and budget relief for cash-strapped state and local governments, Democratic lawmakers said on Sunday. U.S. Rep. Barney Frank, chairman of the House Financial Services Committee, told ABC television he will put together an economic stimulus bill when Congress returns to Washington after the November 4 elections, while a key Republican said he would support an effort that "makes sense."... U.S. House Speaker Nancy Pelosi last week said a $150 billion economic stimulus plan was needed to help counteract a faltering economy shaken by a paralyzed banking system and steep stock market falls.
On Monday, Pelosi and House Democratic leaders will meet with key economists to discuss a jobs creation and recovery plan that will complement the recently passed $700 billion rescue legislation for financial institutions. Participants will include former U.S. Treasury Secretary Larry Summers, former Securities and Exchange Commission chairman Arthur Levitt and former Federal Reserve vice chairman Alice Rivlin.