I use this system for streaming a live radio show twice a week called Radio Memories at http://vaughnlive.tv/radiomemories
I needed to build a fast enough system to run all of my broadcasting software without any glitches or lags.
I hand picked these parts after doing a lot of research. So far, this new computer is working very well. The only bottleneck is my ISP. I'm stuck with AT&T Uverse at the moment. The speeds are rather low. I'm only getting 11.3 down and 0.95 up. That's barely enough to stream at the current bitrates I'm using.
I plan to upgrade my graphics card to a AMD HD 7850 and use the HD 7750 on my other PC.