Looks like a nice crane for the 5D2 at a very affordable price. From the good people of Kessler.

Kessler Crane™ - Quality Professional Camera Cranes, Camera Jib & Camera Support Products - KC-Lite 8.0 Crane Only (http://www.kesslercrane.com/index.php?option=com_content&task=view&id=250&Itemid=51)

I am in the middle of narrowing down a small jib for weddings. I have seen some very inexpensive ones on Ebay for under $300. I have also looked at the Kessler Lite, but it is currently on backorder.
From what I have read, the single arm ones shake more than the double, but are significantly cheaper. How much of this wobble can I expect? I trust the Kessler name, but even they talk about the shakiness you get between single/double arms. It will be used mostly with a Canon 5D, but sometimes with a Sony FX-1000 (less than 5#). I know that they can all handle this weight. Do you see the shakiness at the higher end of their weight capacity?
Thanks!

I had the doube arm and it shoot very little with a fully load FX1 bac kthen. I'm pretty certain it will shake when a heavier camera is on the single arm. However it should have no problems with your camera. According to Kessler, the dimensions of the bars will be the same as the dual arm. They use rock solid alum bars.

shot with an FX1 and remote head with no issues of shake. It does take a bit of practice but really good results at an affordable price.