The current fees for research degrees are listed here. These fees are revised each year and you are encouraged to check this page regularly for the latest figures.
Scholarships and bursaries are periodically available. Whenever funding is available, all opportunities are advertised here.
In addition to tuition fees and living expenses, most studies will also incur a further element of cost throughout your research. This could take the form of travel costs, hospitality to run a focus group, conference fees etc. You should spend some time considering what other costs you may need to fund when designing your research proposal.