Thanks for all the feed back on the article.  I enjoyed reading about the additional free tools available and your comments on the article. I can't wait to give these other tools a try.

I did take a quick look at the open source tool KDiff3 mentioned by cowboy_k.  The tool works great for scripts created by SQL Server 2005 Management Studio.  Examdiff was unable to compare these scripts because it would treat them as binary files.  KDiff3 has another nice feature.  When it finds differences between files, only the differences are highlighted instead of the entire line.

Carlo, you should be able to access the link http://www.fullsun.net/.  I am unaware of any alternative link.