The normal bars (with gyro joint) will be ready to go again in March. I had designed a floating setup for certain trucks about a month or so ago, but got so busy with the holidays and shop hunting, that i just scrapped the idea for waiting a couple months on something that I know I dont have to work out any kinks on.
In the meantime, I am offering anyone for me to custom make a set using heims, johnnie joints, bushings, etc.; with my old frame brackets. These bars arent as well suited for towing, and articulation...but could handle hard launches, racing, and some street driving just fine. They would still be a step up from your Caltracs, ProComps, Superlifts, etc.
These bars would most likely be slightly cheaper than my current design also.