I would like to add special effects to the Vista DWM that go beyond Flip3D and are more advanced like Mac's Exposé and Linux's Compiz Fusion.
Is their any reason Vista's DWM cannot perform like Compiz Fusion?

So far I've found:

Switcher
http://insentient.net/

DExposE2
http://www.winmatrix.com/forums/index.php?showtopic=17657

Any other ideas?

Yeah, I really wish Vista had all the Compiz Fusion features too At least the nicer/important stuff. Compiz Fusion + workspaces makes a MUCH nicer desktop environment than any version of Windows for sure (just too bad Linux doesn't like my hardware and doesn't run the apps I need/want). It's partly why I'm building a dedicated Linux-only (not dual booting) box soon.

Switcher works very nicely. Great find!