I came from a school with a tiny physics department, I had a 4.0 and I got an 800 on the physics GRE, thus we are in a similar boat. I applied to several top 10 schools and I got straight out rejections from all but one (in applied physics) who waitlisted me. I was in contact with the professor I wanted to work with in that department and when I was waitlisted I contacted him again. I ended up getting in but the whole process was a pain. I guess my advice is, contact people you would like to work with. When it comes to weeding people out, the less they know about you, the quicker they'll cut you. If they don't know your program, it doesn't necessarily count against you, but you need to make up for it in other ways. On the flip side, several other universities were very generous, thus if you don't get into a top 10, you might still do very well elsewhere, plus you may enjoy it more and might be able to start research sooner. I'm sure you'll do fine, but I know how the anticipation can really be hard. Best of luck!