Hello! I was looking to upgrade my graphics card and was recommended ATI 4770 by people over on the Video forums. I have a 300W PSU with 14A on one rail and 8 on the other so I was told to upgrade my power supply too. Now I'm looking for a power supply which just gets me to run 4770. I'm not looking for a power supply to run 4870etc even in the future. I'm clueles to which Power Supply I should choose. How much Amperes do I require on the 12V line, etc
