The best way to learn this Unix stuff is to do it. A lot of companies are looking for people with a few years of Unix/AIX/Linux experience. Learn as much as you can in school but the best way is to DO IT!!

Find some hardware and build out a few different systems. Keep in touch with the job board sites (monster, computerjobs) and see what they are looking for exactly. That should narrow down a scope for your study path.

Good luck

SeaCros