Dell Home, via its Member Purchase Program, offers the Alienware Intel Haswell Core i5 2GHz Steam Console for $538.99 with free shipping. That's the lowest total price we could find by $41. (For further comparison, we saw a similar unit with Windows 8.1 and no controller for $600 in December.) This unit includes a Steam controller and features an Intel Core i5-4590T 2GHz Haswell quad-core processor, 8GB RAM, 1TB hard drive, Nvidia GeForce GTX 2GB graphics, 802.11ac wireless, Bluetooth 4.0, HDMI, USB 3.0, and SteamOS.

Note: Dell's MPP is available to select groups, including students, government employees, military (active and retired), credit union members, and health care workers.