Not sure about "with ease" but it will carry the ED120. This was the mount used when Sky & Telescope reviewed the scope.
If it's not up to it, Andrews has a
"New AZ mount" heavy-duty alt-azimuth "dual-telescope" mount with tripod. Accepts up to 10kg. of weight on each side of the mount". Price is $299.
I believe this is probably the Skytee-2, which according to forums in the UK is actually capable of handling TWO 15kg scopes!!! I have it on a
Meade LXD75 tripod and it handles my 7" Mak easily. The Mak weighs around 9kg with accessories.
http://www.opticstar.com/Run/Astrono...?p=0_10_2_0_91
Regards
Morton