The BenQ RL2455HM Gaming LCD monitor has MLG's seal of approval. Basically what they're looking for is low response time (less blurriness in high motion scenes) as well as low input lag (the latency between the monitor receiving a signal and displaying it on the screen).

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Buy it now at NCIX: http://ncix.com/search/?categoryid=0&q=benq+RL2455HM