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.com/en/videos-en.aspx.
Here's the cage I bought: http://www.shapewlb.com/en/product/products/shape-support/dslr-to-go/dslr-cage-kirk-neff-edition_209.aspx?id_page_parent=282&prevnext=typemodule%3d1017%26globalitemindex%3d8%26aidcategorie%3d44%26sort%3dNumeroASC
Here's their follow focus which is a pretty perfect fit: http://www.shapewlb.com/en/product/products/accessories/follow-focus/follow-focus-friction--gear-clic_60.aspx?id_page_parent=134&prevnext=typemodule%3d1017%26globalitemindex%3d1%26aidcategorie%3d21%26sort%3dNumeroASC