Addict101,
I was in a fraternity 40 years ago and I've never regretted it. Things may have changed a bit since then but as I recall, the first week of fall semester, all the fraternities had open houses. As Dr, Pepper suggested, talk to some of your friends, especially sorority girls, and get their opinion which are the best houses for you to look at. I presume there are too many for you to evaluate firsthand all by yourself. After you narrow down the choices a bit, go to those fraternities' open houses and tell them honestly that you are interested in pledging a fraternity, but that you intend to check out several different houses and won't pledge immediately. They may not like you either, but assuming they do, they will invite you to a social function(which in our day meant a booze guzzling party, but like I said things may have changed since I was in college). Remember, the word "rush" implies that they are going to try to pressure you into pledging...don't do it, take your time in making the decision. But don't take advantage of them either...one or two parties/social functions should be enough for you to make your decision. You can't make a wrong decision...just make the right decision for you....these are guys that you will very likely still be in touch with 50 years from now....I still am.