I want to build a server for my small business, but my budget is incredibly small (would prefer to stay under $1,000, not including operating system costs). I'm perfectly content with refurbished hardware, so long as the CPU supports hardware virtualization and Windows Server 2008 R2. I'm also perfectly content with building the server from the ground up with individual components. A banged chassis isn't a problem (assuming it doesn't prevent me from opening/closing the case).
Trust me, I totally understand the value of more expensive hardware. Fault tolerance, ease of maintenance, etc., are all very important to me. However, because of my current budget constraints, it's literally cheap or nothing.
Edit: By the way, I'm specifically referring to the computer. I have spare monitors and keyboards, so I am able to save in that regard.