Thanks for the comments everyone
This was certainly a more challenging target; i've tried to find a balance between visually pleasing brightness/saturation without going overboard on the stretch/sharpening/decon. Using a NABG sensor for luminance also adds a fun twist.
Prompted by Allan's touch-up, I have uploaded a few more revisions to astrobin with progressively more saturation/sharpening. What do you think? Too far, not enough or on the money ?
(this is the latest:
http://www.astrobin.com/full/231539/E/ )