Recently stopped by B&H and checked out a nice display set up from Shape...I purchased a DSLR baseplate/cage for my 5D Mark III from them and am really happy with it...It's lightweight and can be purchased in a kit/bundle with follow focus, mattebox, and their push-button handles (good price considering the quality and lifetime warranty). The cage also has a top handle with that push button technology that I haven't seen anywhere else. I guess it might be patented? Anyway, they posted some videos of their DSLR line at the NAB show: http://www.shapewlb....videos-en.aspx.
Here's the cage I bought: http://www.shapewlb....&sort=NumeroASC
Here's their follow focus which is a pretty perfect fit: http://www.shapewlb....&sort=NumeroASC