Your post details are missing (this happens quite a lot), but as a former owner of the 320, these are my thoughts.
The build quality of the 320 is fanatstic, but in my opinion, that's the only positive point. The negative sides of the 320 are the incredibly slow loadijng time, and the fussyness of the player when playing any disc with the slightest mark, mine was forever freezing during playback, sometimes with new disc.
My personal opinion is that there is very little, if any difference in picture quality in blu ray players playing blu ray discs, though upscaling of dvds can be improved by better players. If you just want a player that plays blu rays well, then even budget players will be plenty good enough, have look at recent Sony and Panasonic players, I'm sure you won't be disappointed.