I'm building a new budget gaming PC with Marshall. Minecraft shouldn't be a problem. Ideally it will handle World of Warcraft (likely) and my as-yet-unused copy of Skyrim.
Plus Windows 8.1 System Builder edition ($92.00), the total is $656.30. I went a little over budget but this feels pretty good.
Update 2017-02-17: the December 2016 build is now posted.