If you want sandy bridge, then wait to order everything except ram, which is cheap right now. Sandy bridge is socket 1155; it won't work with current socket 1156 motherboards. Newegg has an asrock sandy bridge board now. Intel wants your $$; they usually require a new board chipset/socket with major releases.
Don't order ANYTHING if you're waiting for P67 MOBO. You want to make certain that the RAM is compatible per MOBO; the 4GB sticks especially - to a lesser degree the 2GB sticks. I've noticed that DDR3 RAM has been dropping in price; some high quality Corsair has dropped as much as 25% in the past week.