NEED GUIDANCE and SUGGESTIONS!!

I have a HUGE project (at least for me) and need some guidance.

I am trying to create a database for a local university movie club that allows users to input there basic personal information (name, address, telephone number) as well as movies in there collection. The movies will be categorized by genre (comedy, romance, horror, etc.) and title. I want to be able to let the users add and remove movies to their list of movies they own, I'll call it "MOVIES I OWN".

The user will also need to be able to create a SECOND list of movies they would like to see, again they can choose by genre and title. They need to also be able to add and remove from this list also, i'll call it "MOVIES I WANT TO SEE".

The last part of the project will be to match the users of "movies i want to see" with "movies I own" users. It will be displayed on the local university website when the user logs in and will alert the user to the match. If there is a match at a later time, maybe the user can be emailed? Also if there is a match, perhaps the two movies can be taken off record after the user acknowledges the match. I would need it to be able to handle a small amount of users now logged in at the same time , but would like for it to eventually handle several hundred users logged on at the same time in the distant future with out performance problems.

I am not sure if sql 2000 is the best to get this done or perhaps oracle. I am currently trying this on mySQL with PHP but currently am lost in a forest of data. Any guidance suggestions will be greatly appreciated. I am pretty new to this so please be kind...