Wow thats a pretty packed case! As long as you get those wires outta the way, you should be great man! Here is what I'm doing. I'm buying these two from newegg. I recommend this 4850 because its smaller, has two slots for more cooling, and temps compared to others are much cooler. It has a non-reference fan with a heat-sink attached. The less known brands are better quality and so far the reviews on newegg and Tweaktown are great. And this psu is great for its price/performance, plus its a steal for 600W!