Another question: A lot of people have discussed the idea of a year off between undergrad and grad. school. My question is, would it be looked upon negatively if during my 1-2 years off I did something not directly physics? I'm considering doing a Master's in the Philosophy of Physics, which wouldn't at all quite be physics, but would be really interesting (I think). I love picking up my old books and reviewing, so I'm pretty sure I could keep my technical skills sharp until time for physics PhD, but just wondered what all of YOU think.