I just purchased a Samsung 650 Plasma TV that I should have in early June. Currently I have a Panasonic DMR-EH75V as my DVD player. According to the manual it upconverts DVD's to 720 and 1080i. Does anyone else have this Panasonic Model with a HDTV, if so how is the up conversion?

Would I be better off buying a Oppo 980 to convert my DVD collection? Would the oppo give me a better picture? I have a lot of DVD instructional videos that I can't upgrade to Blu-Ray, but I would like to take advantage of a better picture up converting the DVD's.