This deal has ended.
Newegg now has the Logitech Black Wave Keyboard for $34.99 after this $15 mail-in rebate (through 9/17). This keyboard employs a new ergonomic wave design, making it easier on your hands and arms and has several one-touch and customizable functions. I use this keyboard everyday and have zero complaints. Shipping adds $6.99 and there is no sales tax (except CA, TN, NJ).