Disclaimer: I'm not a .NET programmer. The company I'm currently working for has large number of tools written in various languages (C/C++, C#, Perl, Java, etc.). We are in process of unifying builds of these various tools under Maven. This article describes how to add Maven build to your .NET project(s).
You may also consider using NPanday, which provides direct support for building .NET projects using Maven.
This tutorial will not teach you basics of Maven. You should be aware of Maven lifecycle, standard directory layout, plugin (mojo) mechanism and profiles