I've got the BDP-S350 and am very pleased with it. I reckon the Panasonic will beat it picture wise, but will it be £100 better, probably not. At £200 on the net, the Sony will probably be the better value.
I'm viewing the BDP-S350 as a future bedroom player when even better, cheaper players start coming out next year.
Onkyo TX-NR905 | Pioneer PDP-LX5090 | Sony BDP-S350 | Virgin V+ | Home Theatre PC | Monitor Audio BR5 & BRLCR | KEF KHT Eggs (2 x rears) | REL Q150E |