The summary of the Stimulus plan circulating the House right now is pretty weak. It concentrates the majority of the funds in a tax cut and a good portion of that is corporate tax cuts. Basically this plan sucks. The bang for the buck in terms of GDP increases vs Tax dollar spent or not collected is low.
As you can see from this chart I borrowed the GDP increase per dollar is better spent in infrastructure, unemployment benefits and temporary increases in food stamps.
(click image for larger version).
If you want a larger stimulus that will actually increase GDP please visit Campaign for America's Futures website and sign their petition.