R.J.
We did that... except for that DS easily drank a gallon of milk in a 24 hr period. (As an infant he drank an average of 22oz PER FEEDING... exclusively breast-fed as an infant... so the gallon a day of cows milk was a pretty natural progression of adding solids).
Our Ped group was *thrilled* at his consumption. He had some of the densest bones of any child they saw (he was HEAVY though, thin and muscular, but HEAVY), no worries about mylenization of the nerves- because the fats from the milk provided more than enough, low overall bodyfat, and he drank rBst free pasteurized cert organic milk (we live an hour away from that particular dairy, the milk was also dirt cheap, which was good, because we were dirt poot)... so no worries about hormone or pestacide buildup, blah blah blah.