Develop a specialized skill with a specialty course

Hi guys,
I'm wondering if in the USA or UK there is something like a specialty course post graduation.
In the next months I will be relocating to the UK to improve my english skills; after that, I'd like to take a specialty course in the USA (or UK) in the IT/Computer science/Telecommunications field to develop a specialized skill.
Do you know any websites where I can look for this kind of courses?

Thanks

As promised, I have listed some of the top post grad schools in the US, for the skills u possess

Carnegie Mellon University
Pittsburgh, PA

Massachusetts Institute of Technology
Cambridge, MA

Stanford University
Stanford, CA

University of California--Berkeley
Berkeley, CA

Cornell University
Ithaca, NY

University of Illinois--Urbana-Champaign
Urbana, IL

University of Washington
Seattle, WA

Princeton University
Princeton, NJ

University of Texas--Austin
Austin, TX

Georgia Institute of Technology
Atlanta, GA

California Institute of Technology
Pasadena, CA

University of Wisconsin--Madison

Sounds more like you want a tech school. They're a dime a dozen around here.

Thank you for your replies.
I'm not looking for a 'real' academic year at school but just a program to develop a skill.
I know sometimes these kind of programs are held by companies but maybe there is also something in a school or university.

Up!! -ten characters-

There are several community colleges that have courses you can take.

Any suggestions?