At IBC in Amsterdam, Wooden Camera is also showing off a new Ultra Arm that is immensely flexible and modular. Many of the cheaper Magic Arms can break easily after a while, but with this rig you should be able to replace only the part you need to, as it uses essentially a ram ball mount that can easily pop out
The modularity of the Ultra Arm means that you can use it in many different setups, and almost instantly change out from 1/4-20 to 3/8 at any time.
The Ultra Arm should be shipping in about two weeks at a price of $95 for the small version, or $165, $175, and $185 for the larger versions. You can find out more over at the Wooden Camera site.