I am about to buy my home cinema equipment but need some advice about up-scaling. My equipment will consist of a 40 inch Sony KDL-V2000 which up-scales. This will be fed by a Yamaha RX-V2600 receiver that can up-scale. A Panasonic DMR-EX75 HDD/DVD recorder that can also up-scale will connect to the Yamaha. Now the question, do I have to pick which product up-scales or do I leave all three up scaling say at 720p?