Not really TBH especially at that size, it just makes the graphics card work harder.
There may be a lot of 2ms monitors, but the difference between one of them and an 8ms one is imperceptible, a lot of it is just marketing to cover up what is usually a rather basic TN screen (same with the "dynamic contrast ratio"). Personally, i'd go with this screen as it is considered the best 22in around. This is because it is fast enough and it uses a brilliant e-IPS panel - so all competitors pale in comparison to it's image quality and viewing angles.
Is there an equivalent 24" 16:10 screen out there?
i compared it to a samsung 2270 and the samsung had 17-9 while the dell had 20-9... so i am still not sure about which one is the best... but u mentioned about the dell having some extra stuff about i dont understand em
which 1 is the best for a price margin of 200?
thanks a lot m8! the only thing about the dell is its contrast, it hasnt got too many black colors... well i did a bit of search and that wont affect my gaming at all but only the films, which i barely watch 

no wonder it got 5 stars lol. i was going to spend 160 pounds on monitor but 2 of the items i was going to buy went on sale and i got another extra 30 pounds to spend, that makes a total of 190 which is the price of the dell now when its on sale talk about lucky 
and 1000w corsair hx
may i ask what fans u got on that prolimatech megahalems? i will be buying that one too, just want to know which fan to put on it. obviously going to need 2