Originally Posted by Natalie105
As for the power, would it make a massive difference if I got the eco one? Why are some more expensive/better than others?
I don't think a massive difference, but a noticeable one if you really looked. Some are more expensive not because of the brand name but their quality build. Buying a cheap PSU has a higher chance of failing than expensive ones. The PSU I suggested earlier (Corsair 400CX) is a little pricey, but it's the highest quality out of the choices posted here. And it is also eco friendly I believe. It is 80 Plus Certified. So that means it has more than an 80% efficiency at up to 100% load.
The Compucase Green Earth PSU you posted earlier looks to be 80 Plus Certified too.
It's your choice. I'm not forcing you to go with the Corsair. I'm just recommending.