Found a good graphics engine: Ogre. Will probably use it to develop a 2.5D tiling engine.
Might use Mogre, but kind of want to relearn c++ as I do it.

Might use OGE, but their examples are hard to follow (my c++ is too rusty). Also, they are still on VS2005 (Ogre went to VS2008) Posted an issue and got a response within the hour, which is cool.

Open Game Engine: http://www.opengameengine.org/
Open-source graphics rendering engine: http://www.ogre3d.org/
Managed Open-source graphics rendering engine: http://www.ogre3d.org/wiki/index.php/MOGRE