PreCYdent is a new search engine that may be of use to pro se library patrons, as well as others. This search engine contains cases and statutes that are in the public domain. It is free to use, and has a user-friendly search box similar to Google's. PreCYdent is an open source site and currently has 335324 opinions and 2501 statutes from 04-01-1759
to 02-08-2008.  If you want to try it out, click here.