I had my pio dv-737 for about 4 years now and it think its about time to replace it. I have it connected via component to my Pioneer 435 and to be franke i find the pq very good, but i just feel something better is out there. How much better are the likes of denon 3910, DV-868i, DV-668AV, DV-757Ai or even DV-575A? Will i get a massiv improvement in pq or should i stick with my trusty 737 and wait for the hddvdplayers to come????