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Hi there,
While I'm all in favour of dobs (I've got 4 and counting), bigger isn't always best.
Stu has explained how simple they are to operate. Nicely done.
While your equatorial mount can be tricky and time consuming, a 10" dob is a big sucker if it is a solid tube. Unless you have an appropriate car to take something that big, you can be in for more bother than you would like.
Before laying your money, I'd suggest you get to a star party organised either through an astro club, or any listed in the Star Parties forum. There you will see dobs of all sizes and configurations. Solid tubes and truss type. And how easy they are to use. If you ask really, really nicely, some fellows will allow you to have a fang of theirs. Oh, and take a scope of yours along too. You'll gain twice as much that way from the visit.
Now, don't forget another thing. If you are handy with tools, you may like to get your hands on a solid tube dobbie, 10" or 12", take to it with a hammer (so to speak) and refashion it into a truss one. Have a look at what I did to the 17.5" I reworked... before & after. And my 10" dob too.
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