Agree with what other posters are saying. If you can get an internship 100% do it. I was a poli-sci undergrad. About a year after graduation I realized I hated my career choice (limited options/height of recession) and wanted to jump into something new. I took a gamble and went to grad school for HR. No matter how many jobs I applied to I was constantly getting the the over/under qualified spiel. I also couldn't afford to take an internship since I would literally starve to death and didn't have parents who I could fall back on (yes I have parents but they aren't rich and I refuse to rely on others- plus I lived in a different city). The solution for me was to get with a temp agency and tell them I was only interested in HR assignments. It was the perfect medium. I got to sample a few industries, network with other professionals, and when all was said and done I had three solid offers from large 5000+ ee companies on the table within two weeks of graduation.

Would an internship/knowing what I wanted to do for a living have helped? Hell yea. But not everyone can afford to not make money. Point is there are other ways to break into the field. I know a lot of people who actually got into HR through temp agencies. Just make sure you only look at legit ones.