Ok, I'm going to grab some decent chain lube from the LBS today and try my best to clean and relube everything. I'd rather take it to the shop, but A. I want to learn, and B. I can't afford my shop.

The bike is an '06. Components the same.
I took the chain off the front crank and it was still a bit stiff. The rear wheel spins freely. it seems like the rear cassette its a little stuff going in reverse as well. It doesn't seem like anything is damaged, just not clean and smooth.