I have an Apple LCD 23" Monitor. I have resisted buying the 24" LED because I've read some negative reviews when it comes to photo editing. I use wanted this LCD to mainly be a destop monitor to connect my MBP and to edit photos. Digital photography is just a hobby. I have noticed though that when I edit my photos and then take the photos to be printed at Walmart, for example, that my photos do not look like what I see on the monitor. Someone said I probably need to calibrate my monitor. I've only used the calibration that is on my computer. What I'm wondering is what is a simple and not too expensive calibration tool that I can use? Or any other advice?