Been having great fun with 3 DL1s and Catalyst lately. We have been using the DMX switcher made by D-Tek. It has been great to use our console to switch between the camera units. Plus we are running a Crosspoint matrix switcher inbetween our main & backup catalyst units so we can have seamless switching if the main unit goes down.
Next it is time to add several lipstick cameras as well with these units to grab more shots.