Kettlebells. Search youtube for "Enter the Kettlebell" with Pavel Tsatsouline; easiest, best way to start, is with the "Simple and Sinister" program, which is j

Kettlebells. Search youtube for "Enter the Kettlebell" with Pavel Tsatsouline; easiest, best way to start, is with the "Simple and Sinister" program, which is just kettlebell swings and Turkish getups.