hi all,new to the forum i have currently got a 17" monitor and looking to upgrade i just surf the web but my son will be playing games and dvd's been looking at the benq g2420hdbl & benq g2222hdbl not having much experience with monitors which do you think would be the best size to upgrade to, seeing as you sitting up to 1mt away would the 24" image quality be as goog as the 22",thanks.