hello guys im hoping some people can help me on my path to finding the right fit for me to buy.at first i was going to buy the 27' iMac, but then used a 2011 one for a week and i got tired of its size, its just too big for me. so i realized i need a 21'imac its the perfect size for me........now, i am going to use this imac for general stuff but i am video editor, i mainly use final cut pro, motion, compressor, and some photoshop and i multitask a whole lot. but i will need my focus to be on editing in final cut pro with multi audio and hd video tracks,etc...so i need the best bang for my buck with the apple prices so ridiculously high. i wanted to get the 2012 imac because i do want usb 3.0 and thunderbolt and new processor, as it would help for editing speeds?.. i was thinking about getting the top spec 21' with standard 5400 harddrive (i dont trust fusion drive for the extra money), upgrade to 16gb ram, and upgrade to i7 and it comes to about 1875$!!! and later buy a external ssd to boot off the os from.. what do you guys think.?