Windows Forms 2.0 Libraries

I try not to do advertisments on commercial products, but there are a few tools or libraries that, IMHO, really deserve it. One of them is Janus Systems WinForms Control Suite. If you need to create user interfaces that really show off, I suggest you to give Janus a try.

I know many people use Infragistics with good success but, IMHO again, Infragistics is bigger and more complex than necessary, and when talking about tools and libraries I try to go the focused and light way. By the way, which WinForms libraries have you used in your projects?

Disclaimer: I have no association with Janus Systems (Hint: not even a free review copy [;-)]).