Leon,
I agree with Jase, but tend to suggest that most any scope will satisfy the guiding requirements. In my case I use an old and not too expensive Celestron NexStar 80, which is 400mm focal length. Something like this will be all you require, and if you use a ToUcam like me, the best thing you will buy is the Losmandy guidescope rings (in my case DR105).
Then both the FSQ, and the guidescope need to be affixed together. In my case I use a home made side by side, essentlially a homebrew DSBS that Losmandy also make. I can dig a picture out if it helps. I have also used the guidescope on top, as pictured.
I use K3 CCD Tools for the software, but others (although not me) have had success with PHD.
Really you need to sidle up to someone and see what they have, and how they use it. It can be scary to start with, but it is the only way, unless you are a masochist like Tornado 33.
Gary
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