About to buy a new iMac, and want to buy right. I read elsewhere (http://www.silvermac.com/2007/imac-colours-washed-out/) that the 20 has problems the 24 doesn't... ====== The reason for this is that Apple has used TN displays, which are the low end displays and are very cheap. 24 inch model comes with IPS displays, just like the old 20 and 24 inch white iMacs, and they are perfectly fine. ====== All of this is about as easy for me to understand as Chinese. Advice? Please and thanks.