I dont know if your still interested but i bought the samsung one back in July and love it. The max resolution is only 1440x900 and its not a "true" widescreen aspect. Most widescreen monitors, like this one, are 16.10 aspect vs the the true widescreen 16.9. It offers some good advanced settings, including the magic color which can be weird to get use to at first. After 5 minutes unless your looking at colors that are already bright you dont really notice. I havent checked out the viewsonic one but if your going to be using the monitor for gaming then your going to want one with low response and the samsung monitor has 4ms, standard for monitors that price is 8ms.
Overall i would give the 940bw a 4.5/5.
The only thing that I do not like is that the provided stand is not height adjustable. You can change the angle but if you got it a little too high, as i do, you have to raise your chair. It also looks great in digital mode, make sure to use if you have DVI on your video card. Although it does not say on samsungs site or the box, it does come with a DVI cable.