Waiting newbee

Hi all,

While waiting, comtemplating and sipping on a beer...

I kind of strolled in to this forum a couple of weeks ago and saw the fantastic images you have taken.
That made me inspired to make something by myself, but... we got 100% cloud cover since then. 13 nights in a row. Bummer.
Looks like there going to be clear sky next week if you can trust the forecast.

While waiting for stars to pop out I've been surfing a lot on the Internet, bying a remote and a nice book about astronomy.
By now I think I can find my way to Polaris... and I'm craving to get theory into practice.

Still kind of confused about equipment, though. Some advice or thoughts would be gratefully recieved.

The question part:
As most people here in dpreview forums, I got a camera and a tripod.
Living in a suburb (not ideal for this kind of photography, I know).

(I think) most of you come from astronomy and started taken images?
For me (and maybe others) it's the other way around.

I'm thinking of beginning with taking a lot of images and stack them in Deep Sky Stacker. Got LR4, but not Photoshop.
(I had a few images laying around when trying to catch meteorites and was able to test DSS with these images).

Have some tele lenses (90/2.8, 150/5,6, 300/5,6) and an old manual 400/6,3 to begin with.
I think I got the camera tecnical parts covered. Might even convert a body to IR later on.
Have tried to catch the moon before with the 400mm and learned that a tracking device would be a good thing!

This was the build up for some serious questions.
To step up from a standard static photographic tripod, I see a couple of forks in the road ahead if this will become a full time hobby.
Everything I've been reading so far is "the mount", get a good mount! So far so good.
So the next step should probably be to buy a mount to connect the camera to?
What's the way/mount to go from here? A tracking device as Astrotrac or a "standard" astronomical mount? (the german... seems to be the way to go if I want to take images of the sky)
It looks like Astrotrac and the like is cheaper, but have limited upgrading potential?
If I buy myself a refraktor later on, is it possible to plug the camera to that? (and the mount I started with)
Can I use the refractor as a guiding scope later on if I get an even larger reflector?

This is a really dumb newbee question - where do you put the camera to a astronomical telescope?
To the "eyepiece" (don't know the proper name) or using the telescope as a "lens"?
Both ways? Difference in image quality?
It was hard to find info about this out on the web...
As said, I live in a suburb, so the equipment should be easy to move if I would like to drive to darker locations.
I'm quite sure that most things will happen in the back yard, though.

It looks like this hobby could get you really poor, so I would like to take it step by step.

Cheers,
/Tom