With the risc for beeing called a gearhead or whatever, I will soon change to Nikon despite I have 580EX, 70-200 1:2,8L WFT and a 40D (I know it will cost a lot).
I have sold my 20D two years ago to buy a new Canon semi-pro camera which must be able to use autofocus while taking video. Sony, Panasonic and Nikon can do it . . . . Come ON Canon, get a hold of your self.
If Canon want to keep being the leading manufactor of cameras in the world, Canon should make a camera with the following specs (will be between 1Dx and 7D (5D mrk II):
Vari-angle monitor 3" OLED or LCD 1.1 mil. pixels display (good in the sun)(protects the oled glas)
Perhaps FF 18MP from 1Dx
The necessary numbers of DIGIC 5+
Video 1080p mode with 60fps
Build-in Stereo mic
Head phone out
Autofocus at Video and Live View
Facedetection during both Video and still
Interchangeable Focusing Screen, Rule of Thirds known as the Golden Mean or Golden Ratio.
Continuous shooting 8fps
Magnisium alloy body
Water resistant (Weathersealing)
19 AF points with 9 cross over
Both CF and SD slots
Build-in WiFi per-to-per directly to laptop
No matter the cost, I would buy IT !!! (better than change to Nikon, that would also cost).