Alright, so I came across this: http://www.ebay.com/itm/Ageia-PhysX-128MB-PCIe-x1-Physics-Processing-Unit-W056C-/220733020895?pt=PCC_Video_TV_Cards&hash=item3364b69adf ... and pondered the possibility. With a dinky 128MB of memory, is that thing even worth it? Is PhysX itself worth the 20 bucks I'd spend on it?