A 1920x1080 @ 120Hz screen is great for gaming, ... Dell's new AH-IPS panels, the Dell UltraSharp U2713HM are probably the best to go for, if you haven't checked them out I suggest you do.

Desktop monitors, as it happens, are ... I'm sitting ~32 inches away from a 27-inch monitor with a resolution of 1920x1080, or 81.59 PPI. ... the screen is just one component.