Here’s a great deal on P90X2 today.  You can get it for just $45.99 (reg. $139.80).  This is definitely an intense workout, but it’s really good if you have the time and are interested in improving your sport performance.

• P90X2 continues your progress after P90X with cutting-edge training based on powerful new sports science
• 12 new breakthrough workouts across 13 DVDs that include more emphasis on your core, athletic function, balance, and agility
• Includes a comprehensive, customizable nutrition plan with vegan and grain-free options
• From the makers of P90X

(Otherwise, if you want a 20-minute work-out that is difficult but awesome, be sure to check out my review of Metabolic Prime.  I’m on my 6th week now and this is my second time through.)