Wow, this tower is HUGE!
I don't agree on ATI cards. I've been using a Radeon X1600 pro for 3 years now, and never had any problem with it running Vue ( not more than my 8600GT on my laptop anyway).
And it performs very well with Cinema4D's advanced ogl features too.
I will change it though ( or maybe the whole machine) when Santa credits my bank account. It's too old now, and there hasn't been any drivers update for ages, so I suppose AMD stopped supporting it.