New monitor : Samsung syncMaster S23A350H or Viewsonic VX2453MH-LED

Neither of those. Go with the Samsung px2370 about the same price on Amazon. Very good monitor I just picked on up a month ago and love it. Took a little calibration but the picture is excellent and 2ms response time is great for gaming. It is also a great looking unit and looks nice sitting on my desk.

edit: the px2370 sale at amazon is over I got it for $239 but its $20 more now. Still better then either of those 2 and for the price still well worth it.