Synchronizing a physical machine with a virtual machine...is it possible?

Synchronizing a physical machine with a virtual machine...is it possible?

I have Ubuntu running in Virtual Box on Windows. I love the possibility to have both OSes running at the same time to quickly switch from one to another. But I would also like to have a physical version of Ubuntu, so I can get full 3D acceleration, access to all my RAM, enjoy my dual screen (maybe possible with VBox, didn't try yet), etc.