Hi Jo,
Thanks for the compliment. My 300D is not cooled, just full specturm modded and I didn't think about monoing it until now
Looks like my weekend project if its cloudy, otherwise I'll be out there imaging.
The noise level was not too bad after stacking and stretching the seperate narrowband images (except the SII, that had a bit of noise), but I did use Noiseware pro on the luminance map (the OIII exposure/stack) after UNsharpening it in PS 100% 3pixel. I guess combined with down scaling the final image it kept the noise levels in check.
I did some research about de-bayering the DSLR, and I'm actually going to give it a go... wish me luck, but if the extreme-hack works, the extra sensitivity and resolution will come in handy.
Cheers,
Mariusz