Newegg offers the Gateway One AMD Quad-Core 1.5GHz 19.5" All-in-One Desktop PC, model no. ZX4270, for $299.99 with free shipping. That's $20 below our February mention and the lowest total price we've seen. (It's a current low of $130.) It features an AMD A4-5000 Quad-Core 1.5GHz processor, 19.5" 1600x900 LCD, 4GB RAM, 500GB hard drive, DVD burner, 802.11n wireless, USB, and Windows 8.1.
These products are the ingredients for a stable financial life so you can weather whatever comes your way.