Interaction design schools

Hi,

I have just completed my under grad in Product Design. Over the period of 4 years I got interested in service design, system thinking and user research. I am now searching for good colleges over the globe that provide good interaction design, experience design programs.

I found this article quite useful:
http://www.core77.com/reactor/02.08_ixd.asp
but I am afraid that it is outdated, so it will be good to get some latest advice on schools, what are their requirements and structure of course.

Thanks a lot!