I have a Pioneer 434HDE Plasma display with accompanying tuner box. I have a Pace Sky+ box and a Pioneer 717 DVD player and a Denon 3802 amplifier. I want to improve the picture quality from DVDs and especially Sky and I have read on this forum that the best way forward would be a converter box so I can connect the DVD player and/or Sky+ box to the tuner box via component cables. Please advise me on what ones are available and good suppliers. I recently bought an optical cable from www.hificables.com and was impressed with their service but am willing to try somewhere else. I tried a search but was unable to find anything especially relevant. I have a budget of £400-500. I have looked at some on sites and am comfused as to whether I need RCA or BNC and what the difference is if any. Thanks in advance for your help. Jax.