Well, I would say that you are going to want to do the battery, all fluids, clean and sync the carbs, do a valve adjustment, replace any bad rubber, and check the air filter. Also check the fork seals and tire valves to see how they are holding up. Look for any weeping or anything in the upper end of the engine that would indicate any bad seals. Check the plugs and wires to see how they look. Check both the front and rear sprockets and chain to see how they look. I can't remember for the life of me what guys are using to clean up the inside of the tank....? I am sure someone else will chime in here. Congrats on the bike. This thread is a good place to start and I suggest you give it a good read. Fun Fun!
-Seb