You could probably do this kind of fx by simply using some filters, and some photo's and like, then cutting areas out and rearanging things to fit a kaotic scene, then do a duo color filter.
If you wanted to do a 3d mix into this you could always just extrude verts, edges, faces from a set of primitives, then move things around doing some extra inverted extrudes, moves, etc, then do a screen shot of your fx, and place back into PS for further cutting and pasting to go along with what I have mentioned up top.
Whole list of free apps to try this stuff with is posted in this thread below.
http://www.photoshopgurus.info/forum...pic.php?t=4611