I am replacing my 24" iMac (white) with the new macbook pro. I want to get a monitor for it that is at least as big as the one I have now, but without paying too much. As long as it is as good as the iMac monitor I will be happy- does not have to be to of the line. What is the cheapest 24+" monitor that will be as good as if not better than the iMac's monitor?