I'm looking for an LCD that will be good for mostly web browsing and some gaming. I know LCD's aren't the best for video games but I dont play much PC games as I have a PS2, but wan't to play some games. I don't know what size I need, just something 15" or larger. Is it true that the larger ones have better resolution? I would love to get the Dell 20" but think it's just too much $$$, what about the 15" or 18"?