I cannot seem to find other cheaper monitors with the same panel.. as i mentioned above the dell is the only similar one at an extortionate price.

There are cheaper 27" displays like the HP one for £300 although the resolution is 1920 x 1080 as apposed to 2560 x 1440, which is considerably different.. my bros iMac 21" display has 1920 x 1080! Do you think the difference in resolution will be noticeable?