We've just released the first ever beta version of iTuneUp!
iTuneUp monitors your Mac and automatically repairs common performance problems as they occur. You can download it for free from www.ituneup.com/download
iTuneUp features advanced performance and system monitoring technology to repair common performance problems as they occur. While extremely powerful, these features are designed with the user in mind - there aren't any confusing or complicated options and settings to master before iTuneUp can effectively improve your Mac's performance. In addition to automatic monitoring and optimization you have the option of performing a manual tune up to further improve performance or view iTuneUp's cloud intelligence backed recommendation report. (from: http://www.ituneup.com/features)