For those of you who don't know about it, or haven't yet seen the new tutorial released by Cineversity today, it references this bit of free software, which is properly amazing, and deserves its own thread.
Just export as .obj. Instant retopology, Modo-style(in fact Modo uses this technology for its own auto-retopo feature), courtesy of 'Instant Meshes'.
Go grab it, and retopo any resolution mesh, triangles / ngons / whatever, into any other, including quads only option !
Then it's straight back out to obj and back into Cinema.
CBR