and there are two more RAM slots, plus PCI slots so therefore upgradable graphics card.MisterGreen said:Here's what I'm doing. I'll wait until mid January and see what shakes out... IF the dual 1.8 beccomes the entry level powermac at a similar price to what the single processor is now, then I'll buy a power mac... given a choice between a SP Powermac and and Imac.. I'm leaning towards the imac... the main difference is dual monitor support as near as I can tell.