Dave,
Pretty cool idea buddy.
If I had a butt load of miters to do heres a nice clamp Ive been meaning to get to try.
http://www.garymkatz.com/toolreviews/clam_clamps.html
Steve (Fatroman) had a set of these and loved them.
I can using these clamp along with dominos to make some awesome miter joints
They aient exactly cheap but their small light weight and easy to use on site
Here is a article by Jim Chestnut on building Radius cabinets. Though not festool, I thought this is a awesome and easy photo description of what I would think is a very difficult tedious cabinet build complete with how to make the forms.
http://www.miterclamp.com/radius/pages/Radiuscabinetphotoessay.htm