Just get a visual approach because that doesn't cancel your IFR, it just allows you to deviate from the restrictions of the approach and they are still monitoring you.
Are you sure about that Bubbers? I ask because my experience of the USA major airports is that when you call that you are visual they almost immediately send you to the tower frequency and I have always believed that from calling visual you are now responsible for your own separation. Do you think approach still monitors your arrival after he has handed you on? At the busy airfields I don't think so. Just my thoughts.