XIU | 
Component Factory has just released their Krypton Toolkit.
It provides user interface controls for Windows Forms.
The library is build for the new .NET 2.0 framework and Visual Studio 2005.
It includes the following controls:
- Krypton Button
- Krypton Group
- Krypton Header
- Krypton HeaderGroup
- Krypton SplitContainer
- Krypton Panel
- Krypton Label
And above all its free for commercial use.
You can download it on their website
