Hello all, I am trying to upgrade my PSU for my desktop, but my current PSU seems to be smaller than most I looked at. The size is 150mm x 140mm x 86mm and all the information about the desktop is here: http://h20000.www2.hp.com/bizsupport/TechSupport/Docume... I will later want to buy a Radeon HD 7850. Can you please help me find a PSU that will fit into my computer, and have the right cables, yet be strong enough to be able to power that card. Thanks!