I had a very average GPA at a slightly above-average big state school, but a high GPA in a Masters program, and I've had good luck so far this cycle. I agree with what others have said that a grad school GPA will certainly be weighed more than undergrad (unless maybe the undergrad is really, really down there, in which case I would imagine you might provide some explanation in your SOP).
I also interpret it that way because I feel like a lot of schools stated that they wanted letters of rec that spoke to applicants ability to do graduate-level work, so if you also have a GPA that speaks to that criteria, than you are in good shape.