It would likely be wise - and certainly more efficient considering licensing or credential recognition - to do your studies in the country you intend to practice.
Yes I have looked into the requirements, my A-levels are sufficient and all that's left is the numerus clausus. I plan on taking intensive german courses for the next 6 months in germany, so I would be a c1 level by then hopefully.
You need to register in February at the latest, next test will be in July 2015. My daughter went to the test this year on July 3rd.
I don't think the prep courses are worth the money. There is plenty of material to practice that you can order online (The EMS in Germany and Austria is similar to the NC in Switzerland). The statistics say that people who take the courses don't get better results at the NC.
What I would recommend, however, is signing up for one of the "test runs" also offered by the same people offering the prep courses. To practice by yourself is totally different from actually doing the test under "real" time pressure and in full length. It helped me a lot to get an idea about what to expect at the actual test.
There is also plenty of info on the net about which parts of the test you can prepare the best and how. I would for example recommend you getting familiar with one of the mnemonics methods for the memory tests.
If you have any other questions, also about language etc. feel free to send me a PM. We could also meet up some time and have a chat.
I also still have all the material I studied with and would be willing to sell.
Thank you so much for the info! The materials would be helpful as well~ Sent you a PM.
I'll be taking a c1 german exam so if I pass they will give me a certificate. That would be fine right?