Ill agree with you Pat, everybody always says OVERMOUNT OVERMOUNT. in which case its pretty much the way to go. and if i had the money i wouldn't have done it any other way as a EQ6 can give you way more headaches but when thats your budget you take a panadol and keep trooping along!
Out of the box a g11 will leave a eq6 for dead plus for ease of adjustment you wont be useing a small shifter to adjust the dec and your fingers wont be sore by adjusting the ra
As for the telescope listen to what everybody is saying! start of with a short focal length refractor as they are super forgiving then once you get your focus to what you want to image primarily then specialize plus this gives you some le way into learning guiding and programs and you will get reasonable results.!
things your going to hvae to learn:
taking the image is about 10% of the final product.! 90% of the image is in the processing!
Setting up the mount will be your biggest drama for a start as reasonable polar alignment is paramount!(i remember the days of spending 5hrs trying to win that game now its a matter of 15 minutes). then there is the dedication of attempting 1 maybe 2 objects a night
telescope/camera combinations.. VERY IMPORTANT sure you can grab a cam and connect it up but its almost like putting 15" cheese cutters on a drag car... the drag car is capable of great times. but the wheels are capable of driving mrs Daisy...
The only thing is don't be like a cirtain person i once saw at a star party! had a C14 on a Tak EM400 with a ED 80 and a whole swagger of gear in his boxes i think was high end photography stuff... first scope just imported it from US, HAD NO IDEA what he was doing, he was trying to polar align it with the mount pointing north.! then when told that he was walking backwards tried to lift the whole kit and caboodle 180deg...

