What stuff do I need to know, such as fluids, tires, etc. That need to be serviced or changed at XXX miles? How long do tires usually last? I noticed they are very soft. So I would hope I don't have to change them like every couple thousand miles.

Im too broke to be spending 400 dollars every time I need a new tire.
Also, what kind of oil/filter do you guys use? I know the bike has Synthetic in it now. What shops around are reputible, and reasonably priced?