[Starcrazzy]

Hi.
This is my first attempt at a dso through a GSO 8" f5 newt.
Im reasonably happy with the results, I realise I have a lot to learn. It took me over an hour to drift align and get things working. I am using a celestron nexguide auto guider through the HEQ5.
I have a couple of questions.
What is the best (easiest for a beginner) stacking programme? This image is only 1 3minute exposure on ISO 1600. I Got another one of similar length and would like to stack them to see what happens.
I didn't perform the PEC check before I started shooting, and you can tell by the training (i think thats what caused it)
Is it best to have the in camera noise reduction "on" or off?
I Did a bit of fiddling with lightroom3. Is it best to process single images and then stack, or stack and then process?
Sorry for all the newbie questions..

Any help would be super cool.