What is a mortgage?
In basic terms, a mortgage is simply a loan that you can take out to help you buy a property. The loan is secured on the property, so if you fail to keep up with your re-payments, then the lender can evict you and sell the house.
If you wish to take out a mortgage then you will have to decide on what interest rate deal to go for, and by what method you are going to use to repay your mortgage.