hotpoint aquarius vtd00?

HI,
HOW much money would it cost to get a technician to repair a belt and supply us a new filter (at the front by the door) just a rough guide so i can weigh up whether to do it or get a new dryer. or is it easy enough to do yourself,i am a very practical man,and am usually known as mr fix it,so i'm not totally green!!!i've just never done one of these before!!!!
many thanks,

Stephen Merton.
January 2009