PinkBliss (I love that name!) -
I would think that ethnicity is the one of the least problems during rush anymore! Read through a few rush "horror stories" and you'll see that you're sure to be an asset to whichever sorority you chose! And frankly, by reading a few of the horror stories, I think it will help you relax.
Enjoy recruitment. Make friends in many chapters, and in your Rho Chi (or whatever they're calling it) group, and have fun!
Most importantly, we want to know each and every detail! Be sure to let us know about the parties during each round, and how you come to make your decision - some of us live vicariously for that stuff!
Best of luck to you -
honeychile