what is the MOST intense polymetric circuit/ training program for speed and strength?

particularly speed, since i can just do weight training to build muscle. I really want something super intense that’ll give me the best results possible.

Crossfit is pretty awesome. It is intense and varied.

Circuit Training

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Christy Lane’s Circuit Training & P.E. Stations Music and Guide $26.88 Workout to top songs with music that stops and starts with coaching cues Printable guide and wall signs included…

Praise Workout 3 [VHS] $9.98 …

Circuit Cut Training with Sandra Wickham $7.99 …

Prenatal Fitness Fix $9.99 …

Men’s Hardcore Circuit Training $12.99 Hardcore Circuit Training for Men is truly the first of its kindThis is the only book in the world that focuses exclusively on circuit training for menThe book provides links to dozens of illustrative Web sites