Dependency Graphs similar to VS 2010 Ultimate?

I'm looking for a visualization tool for net code dependency graphs similar to Dependency Graphs feature of VS 2010 Ultimate. http://msdn.microsoft.com/en-us/library/ee847415.aspx

Since VS 2010 Ultimate is not available on my project, i'd like to use a similar third party tool, preferably an open-source.

The features i expect from a tool are:

• Dependencies in multiple assemblies
• Visualization
• Filtering
• Navigation
• Detalization levels (assembly, namespace, class/interface, member)
• Go to sourcecode (preferrably a VS2008 integration)

Please recommend the tools known to be good at some of the points listed.

• Dependencies in multiple assemblies
• Visualization
• Filtering
• Navigation
• Detalization levels (assembly, namespace, class/interface, member)
• Go to sourcecode (preferrably a VS2008 integration)

Indeed, I confirm, NDepend has all of them (I am the NDepend lead dev).

Here is the documentation detailing NDepend Graph in details

NDepend has also a Dependency Structure Matrix that will help dig ino more complex graph