Update:
Anyone who still would like to process my subs is more than welcome, however, Allan has helped me come to the realisation that I need to concentrate on better data by using better tools during capture rather than wave a processing magic wand to try and make the sins evaporate to reveal some phenomenal shot. It aint gunna happen.
I am sorry for the *****ing and moaning about all this. Here is my new plan.
1) Build a light box - eliminate the vignetting issue
2) Stick with the DSLR and forget about a CCD until I have ALL the data I need to process to get a good result.
3) Take darks ( I do this now, but need to use them properly and make sure they are at the same temp as the lights)
4) Build a cooling box for the DSLR using the copper box and peltier design.
5) Get a Hutech IDAS LPR filter to kill the sky garbage that floats over my house.
6) Remove all the dust bunnies.
7) And finally......but probably most importantly.....capture ALL the data I need for a quality shot and then not be impatient to create a masterpiece with only 10-20 mins of subs and expect things to jump off the screen and all fall into place.
Rather than spend $1500-$2000 on a CCD and find myself on another learning curve with still no flats, having to sort out coma again, introduce a new learning curve for capture programs and processing, I should be able to buy the LPR, flats box bits and the camera cool box bits for less than say $400 and then wring the DSLR's neck for all its worth before assembling the data to create some decent images.
Once I have achieved that much, then a newer, cleaner and more sensitive camera will simply make things all that much easier.
Thanks to those who have helped and have attempted to extract something from my subs, I do appreciate the help.
Sanity has returned somewhat.....
Cheers
Chris