[violetgeek]

Just to echo 33girl, you want to join a group who can help you in all aspects of life, not just your major. And you will probably end up with several different study groups during your undergrad years. As you get to know people in your major, you'll figure out who you can work with and who has complementary skills to yours -- they may or may not be sisters.

Personally, getting advice on courses for people outside my major was just as helpful -- having someone tell me to "take Dr A for Stats he is easy and everyone gets an A" vs "take Dr B, she is hard, but you'll really learn what is needed for the future" -- very helpful. The chapters are huge at A&M, you'll have good role models who balance their social and educational lives and those people don't have to be in your major -- and they'll be some bad role models too, learn from their mistakes.