One of the Woodford Foundation's major grants was to the Cato Institute to assist in developing their website about downsizing all departments of the Federal government. After about three years of effort the project is nearly completed. You can access the information at www.downsizinggovernment.org.
Another significant effort is by the Goldwater Institute(www.goldwaterinstitute.org) with their "Federalism D.I.Y." initiative which offers a publication entitled Federalism Do-It-Yourself: 10 Ways for States to Check and Balance Washington.
And for analyzing the Federal budget see http://heritage.org/federalbudget/about.