Hi slynch1 – Yes, a pro camcorder is a little bit of overkill for web video, but it's a good idea to invest in equipment that can grow with your business and won't be obsolete in a couple of years.
For that reason, you should probably avoid both the old EX1 and the newer NX70. Both are 1080p 1/3" chip cameras in what's becoming a 4K 1" chip world.
Looking at trends in the industry, 1080p is about to go the way of 720p and SD – making $2000 1080p cameras a poor investment.
If you want to stick with Sony, I recommend the brand new $2299 PXW-X70. This camera will be upgradable to 4K (UHD) with a firmware upgrade soon after release (this is 4 times the resolution of a 1080p camera). It has Sony's new 1" sensor (8 times the area of a traditional camcorder's 1/3" sensor). This will give you much more control over depth of field than you can get from a small sensor camcorder.
Here is an example of what this camera can do (from Sony):
Hope this is helpful!
Bill
Hybrid Camera Revolution
