Is your undergrad in something technical? Did you complete in 4 years (guessing so since it was the zoo)? Obviously the quality of the school is top notch. Those are some additional things I think they will take into consideration.

I'd imagine the low gpa will hurt a little. I'd definitely be ready to talk to it. I think having the high masters gpa will be a bigger positive for you versus another person- shows that you've "matured" in a sense.