I just wanna chime in here as a new owner of 32CS560.
I live in Canada and a local computer store had this set on sale for $299. Honestly looking at 30" montiors and the price differences it was easy to jump on this deal if even just to try it out.
I'm coming from a calibrated Dell U2410 so I know what to expect when its comes to image quality, even though admittedly my vision is nowhere near 20/20. So I'm not the type of person to benefit from a higher resolution as well which was also part of my decision. So, I'm not able to see individual pixels sitting 2ft away from it which is of course different for other people.
I wanted to give my impressions and what I did to get the best possible picture out of it using this tv as a pc monitor.
So, I have the display connected through HDMI, lots of people recommend to use DVI->HDMI to enable 4:4:4 Chroma however I was able to achieve this through straight HDMI as long as you keep sound disabled in your drivers and on the tv, this wasn't a problem to achieve 4:4:4 with the EDID override.
I didn't know what 4:4:4 Chroma subsampling was, when I started, to be honest but if you're going to use an HDTV as a pc monitor its pretty much a must. Text of all kind just didn't look right until I got it working on this set and I couldn't be happier. Its been mentioned already but be sure to label your input as "PC"
Here's the link I used for EDID override to enable 4:4:4 as I had trouble finding an exact how-to. Also download a newer beta version of Monitor Asset Manager as the official 2.6 caused me to blue screen and reboot.http://hardforum.com/showpost.php?p=1038495309&postcount=438
I'm not sure if you have to do both guides but I did.
Input lag is non existent for me personally. I play a wide variety of games and coming from a U2410 I can't tell any difference. Ghosting is mild probably in the same range as the U2410, maybe less, but if you've ever used any IPS monitor that's just one of there drawbacks. Blacks are middle of the road but everyone knows that.
After finally calibrating colors on the tv and colors for video playback in my nvidia drivers I absolutely love this display. The value of of this tv as monitor is fantastic in my opinion and pc gaming on a big screen awesome. So like CclashH said just take the time and set it up right, its worth it.
Hope I helped.