Which motherboard would fit ThEsE requirements?!?!?!?!? :)

Hi Imranx, have you looked at newegg.com? there are a handfull of motherboards that have 4 pcie slots to support 4 graphics cards.

Your situation with the multiple monitors in multiple rooms is a difficult one, but i think i have come up with a slight alternitive...
My plan is that you get 3 montiors, idealy the same resolution but they dont have to be, this monitor will be run in mirror mode where all 3 will display the desktop in each room for you to use.
And secondly set your other 3 monitors (which i assume you will use to watch movies with) to extended mode. Set these montiors to their native resolution, they dont have to be the same as the 3 mirrored montiors resolution. Set one so that it is on the right, left and top of the desktop.
So to sum it up you should be able to walk into room 1 see one screen with the desktop, scroll the mouse right and now it should be on the projector.
In room 2 you will also see a screen with the desktop, this time scroll left and the mouse should be on the 40 inch LCD.
And in room 3 one monitor with the desktop and scroll up, to see the mouse on the 37 inch samsung.
Each room would also have its own keyboard and mouse.

From what i can see you want to hook up a total of 5 monitors/tvs correct? if so you will only need 3 graphics cards, as any card today can support displaying 2 monitors at one time. Additionally since you only need 3 cards you now only have to get a motherboard with 3 pcie x16 slots to fit the cards, opening your options alittle.
I am going to reccomend against going with an hd 5000 series card, which can support 3/6 monitors at once, because they are:
1) very expensive compaired to 3 cheap cards.
2) you dont game as you say.
3) the 3rd monitor on a 5000 series needs to have a displayport input, if not you have to buy an active displayport to dvi/hdmi adapter which will cost another $100 or so.
Getting 3 hd 4550's looks to be the best option for you, they dont need any extra power cables and they are fanless.

Since you did not specify which CPU you wanted it will be tough to pick a motherboard out of all the options there are so i will post a few options. Additonaly for the sata slots you want, it will depend on the motherboard wheather to use pci or pcie sata expantion cards. Becase you want so many sata slots i might point out for you to get a raid card as they can support dozens of sata ports all for just one pci(e) slot.

http://www.newegg.com/Product/Prod [...] 967&name=3
This is a list of LGA 1356 motherboards each with 3 pcie x16 slots, 1-2 pci slots, and some 1x pcie slots.

http://www.newegg.com/Product/Prod [...] 640&name=4
And this is a list of LGA 1366 motherboards. each have 4 pcie x16 slots and 1-3 pci slots, which is what you originally wanted.

Hope this helps you out

overshock, i dident say he HAD to get 3 NEW monitors, just that youd need 3 monitors IDEALY with the same resolution or anything that is bigger than the smallest would display a streached screen and thus be waisted.

additionally you do bring up a good question about the mouse and keyboard, i think it is possible to hook up 3 keyboards and mice to one computer provided he has long enough usb cables...

quick edit, when i mean monitors i mean anything that can be used as a display. (including TVs projectors and such)