Supplemental Custom Widgets for SWT (and more)
The Nebula project is a source for custom SWT widgets and other UI components. Nebula is also an incubator for SWT. Some Nebula widgets will graduate into SWT and therefore into the main Eclipse Platform.
Nebula_Gallery_Explained : How does the Gallery widget work and how to write a custom renderer
Nebula_Gallery_Status : Why is Gallery labeled as Beta