Pants On Fire

Hello, first post from a newbie here.
I have just agreed to purchase a WRX STi Wagon, a Jap import lots of spec above the UK car, anyway here's the question.

Service interval is 7500 miles or 6 months and so far its been done bang on time by authorised dealers.

Next service is 60k miles, cam belt time. Any ideas on cost for this service excluding anything that might be picked up in addition to the stated service items? Brake pads might be due I guess, certainly dont look and feel like they need it anyway.

Secondly I understand that every other service is an oil service, is this right?

Any top tips most welcome.

Thanks