Originally Posted by Cretz
I primarily use my computer for gaming. I mulitask a lot. I want an that will last me another 6 years plus. Besides, the CPU is one of the most essential components of any build.
The PSU is the most important because in order to get the longest life out of everything, the quality of the power being delivered needs to be clean, quiet and stable. If it's dirty, noisy and unstable, then you're asking for problems long before 6 years passes by. The PSU is an investment, not a purchase to be taken lightly. It's even more important when you want to overclock because an overclocked system needs power that's as clean, quiet and as stable as possible. If you power an overclocked system with a PSU that's delivering power that's dirty, noisy and unstable, then you're looking for worse problems than you would eventually face by staying at stock.
The kind of PSU you'd be stuck with in a pre-built is the kind that delivers dirty, noisy and unstable power. That's why people have problems with their pre-builts after a couple of years, especially if it's used frequently for gaming.
Besides, since you want to overclock, a pre-built is out of the question. You could build a pre-built yourself: just buy all of the cheapest parts you can find that have the specifications that you want, and you'll be all set with your custom-made pre-built and it will cost a hell of a lot less than any pre-built on the market.
Seriously, I know it will probably cost more, but your best course of action is building one yourself, especially if you want to overclock. Even if you don't, I'd still recommend replacing the PSU upon receipt.