As one of its daily deals, CowBoom offers the Mad Catz Cyborg R.A.T. 3 Gaming Mouse in Black, model no. MCB4370300B2/04/1, for $19.99 plus $5 for shipping. That's $3 under our February mention of a different color and the best no-rebate price we've seen for any Mad Catz mouse. (It's also a current low for this model by $30.) It features three programmable buttons, nine user definable commands, 3,500 maximum dpi, and precision aim button. Deal ends today.