Am thinking about changing my mortgage?

Can anyone recommend any good mortage deals at the minute either fixed or discounted rates with no fees. i have a tracker mortgage at the moment with the haliax and have got 17 years to run. have been looking on the net but most of the big lenders do not want to give much away. some says no fees but when you read the small print that is not true as they still want to charge you a valuation fee. i am not loking at extending the term and definately will not require extending my loan or wanting to take vacation periods. flexible mortgages look ok in principle but they seem to cater more for borrowing more money than getting rid of the milestone. most standard mortgages will let you pay an extra 10% off each year anyway. thank you
Answer
I changed to nationwide last year. got a great 10 year fixed rate and the only fees i had to pay were for the arrangement which was £299. this was added to the mortgage though so nothing up front. valuation and legal fees were all paid and it was a simple process - completed in a month. not sure of their deals at the moment but well worth checking out.