Besides amazonDE, I know of some PC-related online stores, www.alternate.de , www.mindfactory.de
Well if i had to think about other requirements, I would say that I'd like Windows as an OS, since I haven't had any experience with any other OS. And If it is possible, I would like to have a decent/nice keyboard, since I do a lot of typing for my studies.
Yeah, thats what I thought. My older laptop had an internal dvd drive... Even though it was quite convenient, it was one hell of a brick, and not really quiet either.... So I think you're right, i would be using an external dvd drive.