i read the sticky at the top about psu 's but have a few questions. I pretty much know how much wattage im going to need BUT am I safe just buying any psu i want? I have an Aspire X dreamer case that has an older agp 4x/8x graphic interface on my mobo and was about to buy this combo off newegg http://www.newegg.com/Product/Product.asp?Item=N82E16814143046 Its a cooler max unit I need to upgrade my graphics and psu (only running 350w currently ) How will i know if it fits? are all psu's standard size? will the connector pins be the same for this psu as my current?