Hi Graham,
I converted my 10" skywatcher dob to eq last year.
http://www.iceinspace.com.au/forum/s...d.php?t=125986
The 10" is great for imaging but does require a strong mount to handle the weight. I tried my setup on an HEQ5 mount last week but I think the weight was a bit much for the tripod legs, and good balance is critical to avoid stress on the drive motors. My next plan is to make an adapter for my portable pier, should make it much lower and more stable.
Rick