Samsung HT-TZ215 speaker wires with plugs



I have a Samsung HT-TZ215 Home Cinema system with the original speaker wires which look more like bell wire with those silly little colour coded plugs on the end which plug into the receiver itself. I feel that any cable upgrade would be beneficial and surely improve the sound quality. The question is to what should I upgrade to?Has anyone got any ideas please? I have heard Silver Anniversary mentioned quite a lot but cannot spend a fortune either. My main obstacle seems to change over those little plugs, but after having read another post elsewhere on this forum, has filled me with hope!