I have used Developer Express products for years and years, going back to the days of Delphi 3 and possible before. I really love the controls, they are nice looking and provide a lot of additional functionality over the default controls included with Windows Forms and ASP.NET
They are now offering a set of 60 components for Windows Forms and ASP.NET for free.
- Visual Studio 2005 and Visual Studio 2008 are fully supported
The controls consist of their xtraEditors which includes TextEdit, CalcEdit, DateEdit, ButtonEdit, ColorEdit, FontEdit,PictureEdit,MemoEdit + lots more.
In addition there are buttons, check boxes, filter controls, tab controls..... and some other styling controls including custom forms and usercontrols.
There are too many to list here so check them out at http://www.devexpress.com/Products/Free/WebRegistration60/ and remember there are controls for ASP.NET as well.
Note: The applications you create with these controls can be distributed royalty free