I started in Computer Science, but had been programming for years before starting college, so I went with MIS to get a bit of business education along with IT.
I agree to a certain extent with some here. Certifications are good, but again, it depends on what discipline you're looking at (as well as the companies you're applying to).
I was actually looking at resumes today for an admin position we're looking to fill. For development, certifications are nice, but they're trumped by any "tangible" portfolio you may have, be it open source contributions or side work you've done (heck, even code you wrote in school that demonstrates the skill set you need for the position you're applying).
Certifications are nice, but give someone a few weeks and a password to a brain dump site, and Larry with no IT experience can get one. But, if you're competing with other recent college graduates, they could be what put you ahead.
Edit: Guess I never answered the question. I love IT, but I fell into a pretty niche software category that has a pretty high barrier for entry (that my previous employer paid for). As others said, it's a very diverse job market, so even just saying "IT" could be a bit confusing. It really does take a certain mindset to sit in front of a computer day after day, and can get tedious. But, it can be very rewarding.