For anyone who does not have a Micro Center nearby, Star Micro Inc has the
Intel Core i5 2500K Processor 3.30 GHz 6M Cache Socket LGA1155 SR008 OEM CPU
for $175 + Shipping.
i5 2500K Linky: http://www.starmicroinc.net/product/I5-2500K/Intel-Core-i5-2500
for $175 + Shipping
I did not find this already posted. Reseller rating appears good (9.2/10).
Hope you find this useful.