I as well have wondered this question. Currently i am enroled in the University of Wisconsin Green Bay (USA) for Computer Science. I am wondering if i made the correct choice. I may be changing mine to Information Technology tho. My major to IT , i meant. Anyway, in the field of computer security, there are a few positions.
-Network Administrator-either for companies (with their own LAN) or for Internet Service Providers.
-Security Software Developers-Both Big companies like NOrtons and also for some of the smaller companies hire these people to create programs or to look over them to make them "crack" proof.

Let me know what you decide, because I am as well slighty undecided...

oh btw, only two years? ah, that means you missed the fun of All DOS systems and even before that, stuff like Atari BAsic and BAsica programming