I have just ordered a new base level 21.4" 1.4GHz iMac for my work machine. The only upgrade i went for was the 256Gb SSD storage option. My thinking was that this is more than large enough for all the programs I will use at work, none of which are processor intensive, and we have on site RAID backup for files etc. Reading the forum, there is a lot of variation in SSD speeds being quoted, with some of the new machines having ridiculous speeds. Does anyone know how fast the base iMac with upgraded SSD is nowadays?