Manda-There is a wealth of information strewn about on GC.
There is a big difference between a "Southern Rush" or a huge Greek systemn like Indiana, Oklahoma etc... compared to A&M in Corpus. Not to say it isn't competative. Just kind of sift through things that may not apply. These links will take you to some threads about tips. You can also refine your search and try to find more. Don't disregard a thread because it is dated 2000 or 2001. Good advice is good advice no matter how "aged" it is.
Good luck and KEEP POSTING!
http://130.94.21.174/gcforums/showth...ight=rush+tips
http://130.94.21.174/gcforums/showth...ight=rush+tips
http://130.94.21.174/gcforums/showth...ight=rush+tips