mwave offers the AZIO Levetron Clicker Mechanical Keyboard, model no. KB528U, for $47.99. This $8 mail-in rebate cuts it to $39.99. With free shipping, that's $10 under our mention from two weeks ago and the lowest total price we could find by $20. It features tactile keys with sound feedback, mechanical key switch, laser printed keycaps, rubber-coated WASD and arrow keys, and more. Rebate ends August 31.