Prebuilt powerhouses – Someone probably had a lot of fun with these. The prebuilt refurbished listings came with almost all the parts I’d need right off the bat, including way more memory than I’d find a use for and usually a few SAS drives installed. The only catch was that these were pricier than what I wanted to spend, and were total overkill in the hardware department compared to my incipient needs. Sure, it’d be great to start off with 144GB of RAM and a pre-established RAID array, but that’s not what I need. After all, I want to learn something hardware wise, and one of the best ways to learn is by doing.