The most important thing to know about PC gaming is this: the fans you buy should be powerful enough to keep the noise and vibrations of your games as low as possible. Even the smallest fan you buy can make the difference between sitting on the floor and sitting on your lap.
In order to have a good gaming experience, you need fans that are powerful enough to keep your machine running cool. Gaming PCs are not exactly a popular item, but there are a lot of people out there who have them. Most gamers buy them at retailers or at gaming places like Gamestop, Hot Topic, and GOG.