Good affordable Monitor for retouching.
For photography you want a monitor that will let you view the image at wide angles side-to-side and up-and-down without the colors changing and without large changes in brightness and contrast. An ISP monitor should be your first choice but a PVA monitor is acceptable.
Do not get a TN monitor. Here is a tutorial on how to check for LCD monitor type.
Once you have a new monitor I recommend you color calibrate it. I recommend the X-Rite ColorMonki Display and the Datacolor Spyder4Pro or Spyder4Elite but not the Spyder4Express which lacks the Advanced calibration capabilities.
Living and loving it in Bangkok, Thailand. Canon 7D - See the gear list for the rest.