Another thing you could do to negate neck strain ( I have a neck problem as well....compacted disks and arthritis), and that is to get a camera like a GStar and connect it up to your scope. They're a specialised type of video camera for astronomy and what you can do with one (even on a dob) is have it connected to your scope and then to your laptop. Then you can view what you're looking at on the laptop screen instead of having to follow your eyepiece all over the place as you move the scope. You also have the extra benefit of being able to take piccies of the objects you're looking at as well
There's a couple of us here that have GStars (myself and Jeanette (jjj), for instance) and we'd be more than happy to help you out, should you decide to purchase one. If you want to have a look at one, goto this page...
http://www.myastroshop.com.au/products/cameras.asp. Steve Massey is a really cool guy and he'll give you all the help you could ever want or need