Here's a great set of stuff to get you started using some of the new controls/features in Windows Forms 2.0!
Client Settings [ FAQ | Feature Page ]Data Binding [ FAQ | Sample and Demo | Feature Page ]DataGridView [ FAQ | Sample and Demo | Feature Page ]Designer [ FAQ | Presentation | Sample and Demo ]Layout Features [ FAQ | Presentation | Sample and Demo | Feature Page ]MaskedTextBox [ FAQ | Presentation | Sample and Demo | Feature Page ]SplitContainer [ FAQ | Sample and Demo | Feature Page ] ToolStrip [ FAQ | Presentation | Sample and Demo | Feature Page ]WebBrowser [ FAQ | Sample and Demo | Feature Page ] WF/WPF Interop [ FAQ | Sample and Demo ]