that's alot of fans... lol. i've never seen one that controlls that many fans.
I'd say you'll need two of the 5.25in bay fan controllers... i assume they're all 3 pin?
I have one of these at it works great.
http://www.newegg.com/Product/Product.aspx?Item=N82E16811992012
you'd need two of those... that would handle your 12 fans... then anything else you can plug into the few motherboard 3 pin fan headers. Of course they make touch screen ones as well that aren't much more money if you want two lcd panels on the front of your case... personally I avoid all LED lights and anything like that, i like flat black with no lights.
there are splitters you can use, 2 into 1 and such.
I like having the easy sliders on teh front... put them on low when normal computer stuff, slide em up to high when gaming. easy peezy