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Hi Leinad, sorry I haven't had a chance to respond to your PM yet. I'll respond here though for the benefit of others too.
For visual viewing, you'll need a diagonal and an eyepiece. If it's just for the occassional viewing it doesn't need to be an expensive diagonal. I'm pretty sure you can get them from anywhere for less than $40.
To attach your 350D, you'll need a T-Adapter and a 50mm 2" extension tube. The T-Adapter screws onto your camera like a lens, and has a threaded end which the 2" extension tube screws onto. It then goes into the focuser of the ED80.
Without the extension tube, you won't be able to get it to focus. You can get a WO 0.8x reducer, which reduces your focal length from 600mm to 480mm (f/7.5 to f/6), and also means you don't need the extension tube.
I got my extension tube and T-Adapter from Bintel. The WO 0.8x reducer I got from OPT I think.
To use the 350D on your 8" newt, you may have problems coming to focus. The 8" being f/6 might be different (?) not sure, but with the 10" and 12" f/5, there's not enough in-focus and so you'd need to move the mirror up the tube (or get a very low profile focuser) in order to get a DSLR to focus at prime focus.
I'm still using the stock crayford focuser with the Saxon ED80. Would nice to have a better focuser (with fine focus controls, or even better, motorised) but I found using ImagesPlus for focus assist I was still able to get pretty good focus - it just took a little longer.
Don't forget all the cables and adapters such that you'll need for guiding, as well as the software etc.
It's a slippery slope my friend!
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