Hey!
Thanks for the links, they were very useful! I contacted Steve about the Atari 5200, I hope I get an answer from him. Also thanks for the link of the A/V upgrade. I will consider that. Problem is that I'm not talented in doing something, so I will have to look for someone to do that for me ^^
Steve is a top bloke, so you will undoubtedly be getting a reply soon.
Unless you TV can accept NTSC rf signal, then you will have to do the mod before you can use the 5200 in Germany!
The 8bit domain board is a plug in board for the 5200, so you will just have to drill some holes in the case for the sockets.
If you can hold the right end of a drill, I am sure you can do it!
I fitted the 7800 a/v kit last week and previously had no soldering experience. Just follow the instructions carefully!
Or if you are still not sure, ask Steve to do the mod for you before he posts it, he is a real talent at soldering, I bought a modified 1200XL from him, and you could not tell the difference between the factory solder and the modified bits.
All the best, and hope you get to enjoy a 5200 soon!