how to choose a 19" widescreen

hello... im planning on building a pc within a week or two and well i want a 19" widesreen lcd screen and those are what i found :

- ACER AL 1916 W
Resolution : 1440x900
Brightness : 300 cd/m2
Contrast Ration : 500:1
Response time : 8 ms
Dot pitch : 0.284 mm
Input Signal : VGA (HD-15)
Price : 201.13 €

- BELINEA 1925 S1W
Resolution : 1440x900
Brightness : 300 cd/m2
Contrast Ration : 850:1
Response time : 5 ms
Dot pitch : 0.285 mm
Input Signal : VGA (HD-15)
Price : 229.95 €

- SAMSUNG SyncMaster 940BW
Resolution : 1440x900
Brightness : 300 cd/m2
Contrast Ration : 500:1
Response time : 4 ms
Dot pitch : 0.285 mm
Input Signal : DVI
Price : 245.35 €

- VIEWSONIC VA1912W
Resolution : 1440x900
Brightness : 300 cd/m2
Contrast Ration : 500:1
Response time : 8 ms
Dot pitch : 0.285 mm
Input Signal : VGA (HD-15) - DVI
Price : 295 €

i have absolutely no clue opf what to choose and for now well since i think viewsonic has a huge reputation i guess my first choice is the VIEWSONIC VA1912W... but then again i have another screen at ms of response time and yet another with a contrast ratio of 850:1 AND a response time of 4 ms... however for that last one (the belinea) i couldnt find enough reviews so i remain very suspicious (i want something f*cking good and worth it...)... so please if anyone has suggestions (on other lcd's ?) HEEEELP meeee....

edit : the acer had some pretty good reviews also... its "hot stuff" apparently now... and im getting a SAPPHIRE Radeon X 850 XT

cheers