@Frank Hileman:

while its not part of the framework, id take a look at http://slimdx.org/ its an open source managed wrapper around directx that is pretty well maintained. currently they support:

Math Library
Direct3D9
Direct3D9Ex
Direct3D10
Direct3D10.1
Direct3D11
D3DCompiler
Direct2D
DirectWrite
DirectInput
DirectSound
DXGI
DXGI 1.1
Windows Multimedia
Raw Input
X3DAudio
XAPO
XACT3
XAudio2
XInput