Currently i am using the Toshiba XDE, a DVD player with 1080p upscale capability and the Sharp 37' LCD (720p + 100hz) and i did notice that that the DVD play back from the XDE is very impressive. It does improve the DVD image quality for sure, but off course its still cant match the true HD quality. Nevertheless the image quality is still highly depending on the DVD source, and if you are getting those good imported DVD or good "ahem" DVD (either its being dup from a very good source or converted from blue-ray), the XDE will definitely a good choice to go for as you will be amazed on how good the XDE can improve the DVD.

I do have a WDTV as well, and watching the downloaded 720p and 1080p MKV is a great pleasure, but the difference in terms of image quality are not that huge, not until you sit right next to the TV (normally my viewing distance is about 5-6ft). So in conclusion, getting a good DVD player with good upscale capability will give your current good DVD collection a boast for sure, as i doubt you will are going to repurchase all the same DVD titles in blu-ray or re-download all of them, right? or perhaps a good blue-ray player with good DVD upscale capability worth a thought?

Agreed ... DVD player with good 1080p up-Scaling capability is definitely worth considering if you have a lot of good quality DVDs (not all type of DVDs can benefit from this as i believe everybody knows about the concept of garbage in garbage out :-) ) and it does improve the image quality significantly. I had both the Panasonic BD-60 and the Toshiba XDE ... in terms of DVD upscaling quality, the Toshiba wins hands down and i am really impressed with what the XDE can offer, it does pretty well in improving sharpness, color and contrast. However there's still a gap between the image offered by true HD (Blu-Ray) and the up-scaled DVD, XDE cannot replace or match the BD-60, but it will give your existing good DVD a new life when being watched in the current generation of the HD TVs.