Thanks to Greg Woodard with Woodmark Technologies (http://www.woodmarktech.com/) for the below site recommendations.
http://ninite.com/ – An excellent site that has a host of commonly used free program downloads. These are not just a compilation if simple links. The Ninite system allows you to check off the ones you want to install and it will create a custom installer that can be run that will automatically install them all at once. We use many of these programs internally and for clients.
http://www.piriform.com/ – A great site with computer maintenance utility programs to address all of your common needs. We use ccleaner all of the time for users.