I'm very biased as this is my own home town university, but over the years I've heard good things about University of Aarhus' Comp. Sci. department. (http://cs.au.dk/)

Points worth noting include a local Google research/dev. office (does Chrome's V8), and the "birth university" of Bjarne Stroustrup of C++ fame.

The department has research groups in the following areas:

Algorithms and Data Structures, Bioinformatics, Mathematical Computer Science, Computer Graphics and Scientific Computing, Cryptography and Security, Data-Intensive Systems, Human Computer Interaction, Modelling and Validation of Distributed Systems, Object-Oriented Software Systems, and Programming Languages

Feel free to contact me if there's anything I can help you with :)