Re: Will a 450W PSU run...
OCZ makes the best psu's out there. Yeah, it's very unhealthy to run a psu at 90% of its max frequently, so, unless you want to be changing psu's a lot, I would suggest either a turbo cool 550+W, or, if you have the money, any ocz psu.
Macbook Pro and Logitech z5500s. All you really need.