I am a newbie here and also a newbie to the iMac. I am set on the 21.5" display but not sure about which model (base vs. higher end), which processor (i5 vs i7), how much RAM (8 vs. 16), and whether or not I should pay to upgrade to the fusion drive. I will be using the iMac for picture and video storage, mainly. I don't need anything crazy, just some basic editing to crop photos, make them black and white, very basic things. I have talked to two friends who both work with computers...of course one said go all in and the other said I didn't need all the extras...so I'm turning it over to the MacRumors masses now... Any help would be greatly appreciated. Thank you!