I think either of the monitors that you have linked to would make a good choice. With the current $60 MIR from NewEgg, the BenQ falls within you price range. Both of these monitors advertise refresh rates of 8 ms. That will limit the possibility of ghosting within games. Manufacturers typically exaggerate their refresh rates, but until you start hitting 20 to 25 ms refresh rates, ghosting should not be a problem. However, some people are more sensitive to ghosting that others.
Both of these manufacturers offer 3-yr warranties on their monitors - that is good. Both also include a DVI cord to connect to your graphics card, and that is good too (don't forget to use the DVI connection instead of the D-sub connection). The Hyundai has a little more versatile stand which will let you rotate the LCD. I am not sure you will use that feature, but it is kind of cool. However, as mentioned above, the BenQ has a $60 MIR, which makes it $60 less than the Hyundai, plus the shipping from NewEgg is free.
In the end, you should decide for yourself which monitor is best for you. I think you will be happy with either one of them.