You couldn't have picked a better bike as a learning platform. Everything is basic but good quality, durable components.

Start with a good cleaning, de-cabling the bike and inspecting the cables. Pick up some basic brake shoes from the LBS,
some degreaser and chain lube and you're good to go. As you start to get deeper into the bike go slow, see how things
come apart, and if you get hung up on something definitely ASK!

Good Luck, and congrats!