42 inch TV.. Suggestions please

[k0pp0]

Requirements..

Good (ie: not much) lag for gaming
between 500 to 600 quid in price
Nice picture (obviously)
FullHD (not HD Ready)

Please help - I haven't got a clue. Got a 32 inch Bravia at the moment which is nice, but lags a bit. Want something bigger now after buying a BluRay player.

Thanks All..