According to my 2005 owners manual, these are the 2500 mile service items:
Change engine oil and filter
Inspect air cleaner and service as required
Inspect petcock fuel filter screen and service as required
Check and adjust primary chain
Check and adjust clutch
Change transmission lubricant / clean magnetic plug
Check and lubricate throw-out bearing and clutch rod
Inspect brake pads and disks for wear
Inspect oil lines and brake system for leaks
Lubricate brake and clutch levers - throttle and clutch cables
Inspect operation of throttle and enrichener controls
Inspect fuel valve, lines and fittings for leaks
Check rear swing arm pivot nut
Check all operations of electrical components and switches
Inspect and / or replace spark plugs as needed
Clean tappet screen
Download ignition module, forward to Customer Service
Clean battery connections
Test ride
I imagine at my dealer, that charges $105/hour, we're probably talking at least a couple hundred bucks. As others have said, there are some really great "how-tos" posted on this site that can get even the mechanically non-inclined through at least the basic stuff, like fluid changes.