See Roger's review:
http://www.rogergroom.com/astronomy/review_losmandy_gm8
I faced a similar dilema one year ago - NEQ6 Pro or GM8?
Of all the advice that I sought (suppliers, forum members, users of the mounts) - this one piece of advice really resonated with me:
'the EQ6 will be a mount that you use, enjoy, but eventually sell; while the GM8 is one that you're likely to keep for a long time as a high quality, highly portable imaging rig'.
Having just sold my NEQ6 Pro... his advice was right
I think that that GM8 would be a fantasic quick-grab-&-go imaging rig as Paul describes.
And with the Skywatcher EQ8 coming out (eventually), chances are you'll look to upgrade again.
It's a slippery path...
Logie.