hmmm...
I realized I'm probably approaching the whole lot the wrong way...
After starting a new thread about some basic design problems and reading some other posts in this forum I came to the conclusion the stuff discussed here is still going way over my head. However I'm becomming a bit fed up creating databases using the trial and error approach creating more errors on a long term.
After reading the "What Data Modelers Need to Learn First" thread it turned out I don't even know most of the terms used, I just created the db's the way I saw fit at the moment but no db has turned out being "perfect" which was to be expected

I found a web site listing the "5 rules of data normalization" (
http://www.datamodel.org/NormalizationRules.html) which is a good thing to keep in mind but I was unable to find more basic information. What the hack, I might as well start from the beginning again the proper way
What about starting a thread to collect some good internet information sources about how to realy start designing a db?
What do people have to know first, second, etc. ?
What would be good approaches the look at a problem, etc. ?