Michael,

I figured that with the Open-GL/Direct-X difference... I'm so enamored by the pure-looking lines in MoI even watching the tutorials for Rhino gives me a headache.

And gaming cards are advancing at such a pace that it may become preferable to use more of the 'gaming' end for 3D design applications.

Having the ability to use MoI on older systems has been great for me with my old PC's. I'm even able to use MoI on my tiny XP netbook when sitting on the couch in the living room. My kids are able to watch me try simple objects. Even though it's video is extremely limited, MoI's anti-aliased curves makes even working on a 600-pixel a pleasant experience.