We use Poweredge VRTX systems in our branch offices to run minor stuff. It's not too pricey compared to this Orange Box and it's an easy way to replace what in some cases could be almost a full cabinet of systems in to 5U space.

http://www.dell.com/us/business/p/poweredge-vrtx/pd

Edit: Oh yeah and it supports ECC memory, to address the comments here: https://news.ycombinator.com/item?id=7740087