Nikon pro needs Sony advice

I am a pro photographer heavily invested in Nikon gear, but I need to add video clips along side my still images at weddings. The current crop of Nikons do not have manual exposure in video mode. I am ruling out the Nikon d4, too large, need to carry multiple cameras. Alos ruling out the d800, too many megapixels and Nikon does not have image stabilization in the camera bodies. I am considerin a Sony a77 or a65. I have heard the new Sonys have superior video auto focus. I am also considering the 16-50 2.8 . How would these 2 sony cameras compare to CAnon 60d or if I have to stick to nikon the D7000? Does the in camera image stabilization make a big difference in video?

Thanks
Gary