This scientific study appears to show that milk may have greater benefits then sports drinks...

"There is growing scientific evidence to support the use of low-fat milk following exercise by both individuals and athletes who habitually undertake strength or endurance training."

Follow the link to this article which makes the case of the superior benefits of milk.

http://www.stumbleupon.com/su/6aemXc/www.ncbi.nlm.nih.gov/pmc/articles/PMC2569005?tool=pmcentrez