That's perfect for SB. You'll need DDR3 Ram too. $229 for i5-2500K. $150 for any ATX LGA 1155 that runs two PCI-e lanes at 8x/8x. ASUS, Gigabyte, ASRock, MSI, EVGA, Biostar, in that order of preference for me. Let me know if I forgot anyone (I meant to leave out Jetway, Foxconn, & ECS).