I actually followed the build of a website I found. It has been working pretty well for me so far.
http://www.jasemccarty.com/blog/?p=2263
I am not using any AMD in my lab currently. I actually am using a Intel G620 in both those servers. In my lab environment the CPU never get strained that much, so I put more of my money towards RAM and SSDs. You will use way more RAM and having SSDs helps out a lot more than getting a high end CPU. The only reason I would get a higher end CPU is for the VT-D functionality. I have a 3rd server that I built out to be dedicated strictly to shared storage. I would have to check my hardware list to see what all I used to build it out, but I put ESXi 5.1 on it then use OpenFiler and the VNX appliance for my storage needs.