Lol yes, that's true too. Normal 560 ti's does not support 3-way SLI. Only 560 ti 448 does (if this is what you want)
😀. But 560 ti 448 3-Way is still, not worth it

.
About the processor and Motherboard, they are not compatible my friend, X79 Motherboard does not support LGA 1155 processor such as i7-2600k. The best one in the $300-budget area for a LGA 2011 processor is this:
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115229
(The price is around i7-2600k btw, it's also not fully unlocked)
Sorry for my last post, it was a rushed post. And Monsta, would you change your avatar plz? I don't like it really...