Intel's Haswell processors have presented us with arguably some of the biggest variations in air-cooled overclocking ability that we have seen from the company's mainstream and high-end processors since the pre-Nehalem era. With that in mind, there's a clear justification to opting for pre-overclocked bundles sold by retailers. Is Aria's 4.40GHz i5 4670K-equipped Gladiator Sparta bundle a good choice?