Thanks for this little challenge Monte. Sheesh! You try and do people a service and you get stabbed in the face for it! Nice!
I've never combined channels before, so please excuse my effort. It was done totally within CS3 - from manual alignment and rotation of each set of subs using marker stars and guides to creating smart objects for each channel set to finally adding luminance. Eeks! There has to be an easier way, but I'm comfy with PS so I stick to it. I'll have another go later to get some more luminance out of it somehow, and do a better job on inter-sub alignment. I've managed to introduce quite a bit of noise too, which is a little undesirable. Thanks though!