I'm using a 27 inch Apple Cinema Display.
But I'm guessing your ps3 doesn't have miniDP support...
Keep in mind that gaming/graphics on monitors have different requirements. High resolution IPS displays are important for color accuracy, color gradations, and viewing angle. Meaning you want a big resolution, IPS display (ACD, Dell U series, etc) for moderately important photo/video/graphic design use.
Lower resolution, TN displays provide less color accuracy, poorer viewing angles, etc-- but offer much faster response times/refresh rates. So these displays, notably at resolutions for gaming at 1080/1200 are better if you're competitive at all. And TN displays are MUCH cheaper.
Both displays can look great, but the IPS displays offer better color accuracy and higher resolutions (generally) a the cost of gaming performance at the edge of abilities. I use my display for photo/video editing purposes... and yeah, I boot into Win7 for some FPS games (where refresh/response is important)... and even though this is a high res IPS display, the moderate performance hit in games doesn't bother me because I play for fun... and the bleeding edge of performance doesn't concern me (hell, I'm using an ATI 5770 at 1440p for BFBC2... so I'm obviously not that picky about gaming performance).