Dont forget Luxology, Lux Render, and Goldy Lux! :o

What about Artlantis Studio if you're into architectural rendering http://www.artlantis.com/index.php?page=products/studio/index

Hello Dr.Burr
if you are interested in real-time visualization,especially in stills, here is a new tip:
RandomControl,house of ARION and FRYRENDER(no more released) will release a LIVE plug-in for Rhino 5 !!!
what means this:inside Rhino you can have a realtime preview with one of best unbiased renderers quality
set UV's,materials,lights and everything else in Rhino than convert or apply Arion materials,so you can launch the render,or better..a real-time digital photo..
Arion use all cpu's+gpu's(nvidia)at same time or,if you want,you can choose which device use to render(if gpu or cpu)
If you buy Lumion base =1500 $ approx. that is same price buying both Rhino+Arion live
mantain your"old" quadro for navigation and UI display, and add a new one like a Gygabite geforce 660 ti 3Gb videomemory for computation(Arion ask you which graphic card you want to use)
so...1500+300( geforce 660)=1800$ approx

this new could be useful also for all Rhino users here

cool hat that one in the gallery !

M

FYI: I believe that Octane is also developing a real-time plugin as well.

Octane It's now also a "stand alone" ;) 199 € or 265 $

The new version is just released!
Import of Wavefront OBJ format with parameters and material import
Import supplied vertex normals or calculate them via supplied smooth groups

http://render.otoy.com/features.php