Will are these components compatible?

Ok that was a lot to look through. Couple things I see here. The power supply doesn't have a rail to hook to your video card. I could be wrong but didn't see it. You will have to get an an adapter to plug into one of the molex rails. Your mobo and your cpu run at 800mhz. You are buying 400mhz Ram. This will bottle neck the system at 400mhz. I would suggest getting at least 800mhz ram. Everything else looks like it is compatible. Check the qualified vendors list or QVL of the motherboard to make sure the ram is supported. Good luck!!