Unfortunately there is no such thing as a clear solution. You need to do your own research based on your own circumstances. Noel has provided a place to start, but there is plenty of other material out there - just use your favourite search engine to find it. If, in the course of your research, you come across something you don't understand, then by all means post back and we'll try to help out. We don't have the time or knowledge of your requirements to do your database design for you, though.

John