We have a good relationship with a local mortgage broker who will be able to help you find a mortgage suitable for your requirements.
Interest rates currently vary depending on how near the value of the mortgage is to the value of the property. The best deals to be obtained tend to be if you are borrowing less than 85% loan to value.
There are however some good deals available if you shop around and you may even be able to find a mortgage for up to 95% of the value of the property.
Many people ask "how much can I borrow" and although this varies enormously from lender to lender and dependent on your circumstances a good rule of thumb is four times your income.