Dell Home, via its Member Purchase Program, offers its Dell 104 Quiet Key USB Keyboard, model no. KB212-B, for $7.59 with free shipping. That's pennies under last month's mention and the lowest total price we've seen. (It's the best price we could find now by $9.) It has 104 keys and is designed for everyday business and personal use.
Note: Dell's MPP is available to select groups, including students, government employees, military (active and retired), credit union members, and health care workers.