If you've been following me, you'll know that I'm the last person to genuflect before GWB or the GOP, or before any establishment for that matter.
I was skeptical at first too, but I can't find anything about Roberts that I don't like. He's certainly at least somewhat conservative, and from what he has spoken of his judicial philosophy he is non-activist and originalist as well. So unless you have an actual substantial objection, all your protests will only strengthen NARAL and their ilk.
I apologize for the genuflection remark.
My problem is that we were in this exact same position with O'Connor, Kennedy, and Souter. The only GOP nominees who did not eventually betray originalism were outspoken, ideological conservatives before coming to the Court - Rehnquist, Scalia, and Thomas. So far, Roberts just does not fit the specification.