Kazi285, expect to pay around £60,000 for the integrated training at OAT, pretty sure it says that in the brochure.
As for the type rating, that is usually between £15-£20,000, depending on the aircraft type. You may have to pay for that yourself, or the airline you get a job with, may pay it. they will then take a bit of money out your salary over so many years to get their money back.
Either way its a lot of money, however, you have got to spend money to make money.