First service: I did this myself, but my dealer just said they basically do an oil change and then check everything over on the bike - chain, make sure all the nuts and connections are tight, etc. If you do it yourself, don't skimp on the physical inspection part. My chain had too much slack and one of my upper shock bolts backed itself out a bit which I'm definitely glad I found.
I have to say that this is a foolish thing to do.
You can't expect that a regular guys in the neighborhood would know everything that needs to be checked, and how.
This is highly a safety issue, as there could be nuts and bolts that are critical for the safety of driving the bike, and you and everyone else could miss them.
Let the people who knows what they are doing make sure that the bike is a 100%, rather than saving yourself a few buck wanting to do it yourself.
A simple oil change is fine by itself, but this is the very first service of the bike. The dealer goes over the whole bike, every nut and bolt, and re tighten things to correct torque.
You guys have some balls to choose those bucks over safety, I'll give you that.