Recently I worked in a project where we had to build a cms for a educational organization. There are couple of choices but end up with http://www.sitefinity.com/.
It’s a wonderful site, and has huge customization option. we can build custom control and easily integrate into the application. I would very much like to share more about Sitefinity in near future.
There is a huge set of tutorials is provided for the developers to work and get a good kick start. you guys can download this cms from [http://www.sitefinity.com] and play with it.
This have also a sdk so that we can develop our customized solutions. The sdk can be download from http://www.sitefinity.com/devnet/sdk.aspx.
In near future can would have a series of post to show the power of the tool.
Till then happy programming.