Newegg offers the Azio L70 Backlit Gaming Keyboard, model no. KB501, for $19.99 with free shipping. (Fry's charges the same with in-store pickup.) That's the lowest total price we could find by $5. It features LED backlit keys, detachable palm rest, and volume adjustment control. Deal ends August 31.
Fry's Electronics offers the Gear Head 92-Key Mechanical Keyboard, model no. KB5500M, for $34.99 with free shipping. That's the lowest total price we could find by $6. It features tactile feedback and five media function keys.