i'd try and get the HEQ5 over the EQ5 it will have more longevity for you especially if you considering upgrading the refractor.
you could even have the refractor and camera going at the same time
http://www.teleskop-express.de/shop/...ght-Shaft.html
goto dob is good for ~25 seconds and you can do plenty on the bright object
https://www.flickr.com/photos/803366...ream/lightbox/
(eg with my 12" goto)
maybe keep your eye on the classifieds - see below... for between the cost of an EQ5 and a HEQ5, a NEQ6 second hand is achievable ...
http://www.iceinspace.com.au/forum/s...d.php?t=133122
Best of luck
Russ