Replace the standard diagnostics tools such as Timbuktu, eCare, etc. Gain access to a set of applications performing system scans and analysis, run SMART tests and check the results, clean system cache, remove junk data, view the readings of various hardware sensors, etc.
Mac HelpMate is a free and useful application for Mac support professionals and consultants. It provides powerful diagnostic features, such as the ability to run SMART tests, check temperature and hardware sensors, inspect installed packages, repair permissions, clean caches, remove unnecessary trash files, ASR multicast server, and support for Growl notifications.
Wineskin Winery creates Mac OS X ports/wrappers for Windows programs/games, with an easy-to-use GUI, integrated Wine, X11 and an installer.
LiquidMac uses a particle system to imitate liquid and responds to laptop orientation.
