You guys have certainly broadened my horizons and i'll need to think hard about what to purchase. Most like I'll be purchasing a HEQ5 Pro mount (which I assume can cater for both ED80 and Dob up to 10"?).
I am leaning towards the ED80 (possibly even an ED102) and a piggy back system for my 400D, and over time I'm sure i'll come ot know what images I'd need to cater for most. Will add 8" tube down the line
Appreciate all the help