There are literally hundreds of different jobs in the IT field.
I do UNIX and J2EE (Java Enterprise Applications) - basically I build, test and configure Web Applications infrastructure, and then support that when it goes live. (Work with WebSphere, UNIX, Perl, etc.)
Some other jobs that seem in demand a lot:
Developer (J2EE stuff is big, i.e. writing .jsp, EJBs, etc... C++ or .NET is good too!)
UNIX administrator (need to know Linux, Solaris, AIX, etc...)
DBA (Become an expert in Oracle, Sybase, and especially SQL...)
Network engineer (learn Cisco Routers and switches, TCP/IP, etc...)
Windows Network Administrator (Windows domain controllers, Exchange, ISA server, get as many Microsoft Certs as you can.)
Getting the Degree is just the beginning, you will be entering a field where lifelong study and commitment is paramount!
But also, its a very rewarding field. Although the hours can be long, and it can be stressful (trying working in IT for a bank, or in telecommunications, etc) but the pay is GOOD (I am earning more than any of my friends, etc and am still underpaid), you can become a contractor when you get good (and double or even triple your income) and you will get access to all sorts of interesting hardware, software, courses, etc.
All in all, I love being in IT, and if its meant for you, you will too.