Hello all, Making the switch from PC to Mac. I have 2 iOS devices and now want to upgrade from my 8-1/2 year old Dell to the new iMac. I've settled on the 21.5" version (limited desk space) and my biggest dilemma is whether to get the Fusion Drive or not. I plan to use the unit mostly for the following (home computer): 1. web browsing/e-mail 2. photo storage & editing 3. video creation (compiling videos taken from D-SLR camera & iPad into DVDs) 4. storage & organization of multimedia library (mostly music) 5. big function will be for syncing & backing up the daily multitude of pictures & videos taken with my family's iOS devices 6. would like it to last at least 5 years, preferably 8-10 like my current Dell I'm between 2 configurations (I think): entry-level 21.5" with 16GB RAM or upper-level 21.5" with 8GB RAM & fusion drive. I guess the question is: for what I plan to use the machine for, is it worth $180 for double the RAM? what about $250 for the fusion drive? To get technical, I can afford up to around $1800 total but I want to be as economical as possible and not spend more than I need to. Thanks!