Get a good night's sleep Eric!
All will look better in the morning...
Although I'm amazed that a so-so experience with a DSLR would dampen your enthusiasm for imaging! Especially after such a prodigious and inspirational output. Could it be that you think you've hit the glass ceiling in terms of what you can produce with your gear and ANY dslr - modded or otherwise!? And, the monetary jump to CCD is just too large accompanied by the problems at your location? No easy answer eh!?
I would suggest the Rob Gendler model perhaps (not the remote imaging side).
http://www.robgendlerastropics.com/AdvancedMosaics.html
You've shown us what you can do with that C10 on an EQ6 - imagine combining some of your Eta pics for example (the CCD challenge comes to mind!!!!!) into a huge widefield mosaic of the whole region??
"...that's my opinion. I may be wrong!"
All the best
Doug
