ArgoUML is the leading open source UML modeling tool and includes support for all standard UML diagrams. It runs on any Java platform and is available in ten languages.

Rainlendar is a customizable calendar that displays the current month. It is a very lightweight application that doesn't use much system resources or take much space on your desktop.

Fresh View gives you the ability to organize and view multimedia files (images, audio, video). Watch movies, listen to music, and view graphics in a slide show. Image files in a folder can be displayed using a number of views, including a thumbnail view that lets you quickly see what your images are without having to open them.