Though obviously not my first choice, given that Obama won the presidency, Democrats control both houses of congress with large majorities, and the fact that Sotomayor is replacing an already liberal justice, I think she is far more than those of us on the right could have asked for. The WSJ is even reporting that while she is liberal, she also shows a moderate streak on many issues and on issues like abortion, she could surprise us all. In other words, at worst we have a Supreme Court exactly like it was before with the opportunity for it to move slightly to the right.
Overall nothing worth fighting against. The most Republicans should do is bring her controversial views to light for all to see but confirm her anyway.
But then again, given that her name is my sisters middle name, I’m probably biased.
Update: The New York Times has more.