Thanks all, per your recommendations, I am going for the bottom one in my post.
I have one more question. In pulling apart a second computer (a Dell), it has a different power supply with a 6 pin and a 4 pin plug. I did not find a similar breakout board that takes these plugs and did not find a pin out for them either. Does the 20/24 pin socket on the items above accept these too? No indication on the web pages but I am hoping. Has anyone tried a supply like the Dell, It would be nice to use it too. Thanks in advance.