When did you bought your LCD?IIRC the U2311H was famous here since August 2010.

A lot of things are said on the product pages of displays,but not all of them are true.Take for example contrast ratios that are >9000 ,it sure is a load of crap since LCDs can't get that high a contrast ratio,OLED or Plasma may be able to do it but not LCD.Reading properly done reviews [not user reviews like the ones on Newegg that says "It's bright and colourful" ] would give you a much better picture of how the display really stacks up.

Yeah,you can do that.Connect your PC to the VGA/DP port and the PS3 to the DVI port.You can switch it on the fly through the OSD.

The G222HDL is not suited for your needs,the colour reproduction is as good and as accurate as the eIPS ones like the U2311H.There's also gamma shifting if you move your head vertically away from the optimal position directly in front of the display.

If you literally meant windows shopping then it's not quite possible for the U2311H since it's not sold in physical shops [or any monitor from Dell's Ultrasharp line for that matter]

Online from Dell.com.my or the garage sales section