Liz--Like many other people on this post I will reinforce the idea that the Greek system doesn't have to rule your life. Some people are ultra-dedicated and some people just come to mandatory events, but most of us are somewhere in between. Even if you decide not to pledge a sorority I would encourage you to get involved with some student organization at UA. There is nothing better than finding a "family" somewhere on your campus. I can't even begin to explain it but the benefits are truly endless.
On another note....my sister is going to be a freshman at UA this fall and she just recently decided that she was going to go through rush. She struggled with that decision for a while but relaistically, what can you lose by trying? My sis thinks that no matter what might happen she will end up meeting a lot of great people in the process. I will try to get her to post on here--maybe you guys can excahnge e-mail addresses or screen names and talk out your worries and frustrations.
Anyway...good luck and enjoy!
Melissa