Bright Side of News has written an analysis of the Steam Hardware Survey October 2009, these statistics are based on the PC specifications of more than 12 million Steam users. You can check out the results over here.
One of the interesting things is that 10.78 percent of gamers now own a 1080p screen:
With all the kudos given to graphics cards, processors, keyboards and mice, for gaming experience you need a good monitor, "window into the world of gaming". The most popular resolution is still 1280x1024, thanks to all those 17" and 19" CRT and LCD screens that dominated the markets for well over a decade. Still, lower resolution displays are losing ground with back-to-school buyers going with higher-resolution panels. 1920x1080 and 1920x1200 market highest gains in 30 days, with 16:9 1080p panel taking 0.60% gain to 4.94% and 16:10 1200p panel marking a return with 0.35% gain to 5.84% overall. In short, over 2.5 million gamers now use a 1080p panel, which is quite a sizeable audience. Third large mover is 1680x1050 panel, capturing 18.17% of Steam [30-day gain: 0.26%].