I saw on the trade boards someone talking about "light" and "dark" cactus chairs (the light being quest and the dark being beta). Does anyone know how I can tell the difference if I don't actually have both side by side? Is there a picture of the two different types anywhere? Thanks :)

leanaspin has a thread depicting the dark cactus here:
http://www.vmkforums.com/forums/showthread.php?p=132128

and a light cactus from here:
http://www.vmkforums.com/forums/showthread.php?t=12345

Thanks so much - that is a terrific guide. I'll check that against my chairs when I'm in vmk later today :)