This is the best article I could find about the Perseid meteor shower. It should start around 11 pm. It will run tomorrow night, Sunday night and Monday night, but they think that Sunday will be the best. Apparently there will be shooting stars all across the sky, so you won't have to look toward Perseus to see them. But if your curious, Perseus, which is the radiant point for the shower will be in the Northeast.
And, in honor of the Perseids, here's my favorite meteor-shower song: