3d studio max has a built in render feature from version 7 and up if i recall.
paying for a license for max will set you back a pretty penny.
3ds max has a client and server application, we did it at Brilliant image for a shopping centre 3d flyby.
if you want to do it with linux you should check out boinc.
Its probably more hassle then its worth unless your dedicated.
OSX has a feature called Xgrid but it requires a fibre optical network or infini band for it to work correctly.
Povray can do it as well in linux from memory.
asking in a gaming forum probably means your very early in the days of thinking about it.