Mortgage options
Your first choice is between a repayment mortgage and an interest-only mortgage. After you have decided what type of mortgage you want you can check the interest rate options. Check the small print. A cheap rate or a flexible deal may have strings attached. Get advice before deciding which mortgage to buy.
Repayment options
Although the features and benefits of mortgages vary, whichever repayment method you choose you will have to repay the amount you borrowed and the interest on the loan. There are two basic ways of repaying the loan: a repayment mortgage, and an interest-only mortgage. More 
Interest rate options
As well as repaying the amount you borrow, you will have to pay interest on the loan to the lender. There are deals that mean you pay less interest to start with, but check the small print for drawbacks. Whether interest is charged daily or annually can also affect how much you pay altogether. More 