I finally bought one of Gary Bennett's CGE cable kits. This completely replaces the cables and the crappy RJ-45 sockets with beefy screw-on 8-pin connectors
In the image below, note the connector block on the left side of the pier. This is were the RA and DEC cables plug in. The connector circuit board under the plate is also replaced. Shadowed behind the orange knob, you can see where the other end of the RA cable plugs in. Again, Gary has provided a single-block aluminium piece that, along with another circuit board replaces the original RJ-45 socket.
Full view of the new CGE Cable Kit from Gary Bennett.
Update September 2012 - Cables have been going for a year and a half. Not motor runaways since I replaced the cables. Best money I ever spent on this mount.