Hey guys! I'm currently using an HD 7770 and I'm planning to upgrade to an MSI GTX 770 2GB Gaming [link]. I've read quite a few positive reviews about this card in regards to its performance at 1080p and its noise levels. What I'm concerned about is whether my Be Quiet E9 580W PSU [link] is capable of powering the card so I'm hoping that you might be able to share some input. Components: i5 3570K @ stock ASRock Z77 Pro 4 8 GB RAM 1TB + 500GB HDD PSU: Be Quiet E9 580W 80+ Gold [link] What do you guys think? I appreciate the help.