Hi,

I have been in madrid for 6 weeks now and i love it here. I will be staying for 4 weeks more and then have to go back to school to finish my undergrad. I am wondering how difficult it is to go to graduate school here as an american. does anyone know what universities allow foreigners. i am studying computer science. any help would be great. thanks

Try with IE (Instituto de Empresa en Madrid) and/or IESE in Barcelona. These are well ranked in Business Week and the like. Application process is pretty much the same and requirements are similar (GMAT, etc) although I don't think competition is as fierce as in the States.

Well, we do have Sant Louis University here. Try with them. What Rogerman said are post-graduate private schools, not universities but places where you can do your MBA. I doubt they will accept you if you don´t have a university degree first.
http://www.slu.edu/html/colleges.html