Just bought a motorcycle and planning a week long ride, what are some "must haves" I need to carry?

You may want to think about a gel-pad or wool seat cushion. Oh yeah, get a motorcycle camera mount and a cheap video camera. Earplugs, you may want those. A small spray bottle with a little bit of soap in it, and a washcloth for the bugs on the windshield & helmet visor. Sungles, that's all I can think of in addition to what everybody else said.