UI Productivity Features (Build Vs Buy)

One of the most important factor in all the software projects is user interface. Users need lot of productivity features in their UI to make their liefs easy in their day to day operations. If you categorize, these are not really business functionalities but mainly user productivity features. If you analyze the no of hours developers spent to implement these UI layer productivity features it's huge. So the important message that I want to bring up is if you are building windows or web applications, build the application on top of a superior UI framework (controls) available on the platform you are working on. That will make the delivery quicker. Since I'm coming from .NET background I have evaluated and used two brilliant frameworks for this purpose. Janus and Infragistics are the ones. Both are equally good and worth while you to analyze and decide on a tool. Happy UI programming....