Techpowerup did some digging and compiled an article with prices of Intel's upcoming LGA1156 processors and motherboards with the P55 chipset. You can check it out over here.
To begin with, Intel Core i5 750, Core i7 models 860 and 870 are priced at $209.99, $299.99, and $579, respectively, close to the 1000 unit prices that surfaced weeks ahead. At $209.99, the 2.66 GHz Core i5 750 will be highly competitive with AMD's Phenom II X4 BE offerings in that price range. The 2.80 GHz Core i7 860 is expected to perform on par, or better than the Core i7 920, while being priced a notch higher. The Core i7 870 2.93 GHz only holds premium value at $579, since it ends up being the fastest socket LGA-1156 processor money can buy.