I disagree with the bolded part. For some PSU's you might even get less efficiency (higher power bill), and if you do not plan to upgrade, wasted money, both in short and long terms.
Here is a $65 CAD+$25 USD Rebate
, a $63 CAD PSU
, a $50 CAD
, and hell, if he wants to get SLI GTX 460's he can even get away with this $60 CAD
PSU or this $74 CAD
PSU without skimping on quality.
If you are sure you plan to upgrade to something beastly, like SLI 570's, then yes, a 750w PSU is in order. Otherwise you do not need that much power.
Better spend those extra bucks in a better video card. SLI 450's are hella good, but if i had the chance to pick again and were not interested in BOINC/F@H, i'd pick a single 560 Ti. A bit less power consumption, a bit more performance, and you can add more performance by getting a second one when you can afford it. If you go SLI 450's you'd need to replace both cards if you need more GPU power.
I also know my PSU is overkill, but it was between buying this one for $85 or get a happy happy boom boom cheapo PSU. As i stated before, i could easily power my rig in full load with a Silverstone ST50F-ES 500w PSU
but for that price there are better alternatives, to be honest. It's a hella good PSU tho.Edited by Starbomba - 10/10/11 at 4:24pm