VANISHING POINT AND 3D
While working in the Vanishing Point filter, you can create a multi-plane grid and return the part of the image contained in the grid back to Photoshop as a 3D layer (choose Return 3D Layer to Photoshop from the flyout menu). Once it is a 3D layer, you can move the object around in three dimensions using Photoshop's 3D tools.
Among the others this is one of the real good tips.
I knew I could export it to AfterEffects or give me pixels but as a 3D Layer is even nicer.
And it works in CS4 aswell as in CS3 do you belive that?