Thinking of upgrading my Panasonic DMP-BDT110 which i got free about 18 months ago when i purchased my 42GT30 tv. Would an upgrade to the Panasonic DMP-BDT320EB be worthwhile or am i better off looking at the Pioneer LX55, Pioneer BDP450 or a Denon DBT1713UD?? I had a demo of the Denon yesterday and was quite impressed but is at top of my budget. I can spend upto £300 if worthwhile?? Any advice/thoughts would be greatly appreciated.