I don't drink milk - I use to, but gave it up after doing research on milk about 8-9 years ago. I do believe it is a propoganda myth that "Milk, it does a body good."
Dairy (especially hard cheese) has a lot of calcium in it, and that's why it's the number one suggestion for increasing your calcium intake, however, I have read repeatedly that our bodies do not absorb the calcium from milk well and that a better source of calcium would be from dark green leafy vegies or dried beans.
We do absorb nutrients from milk, our bodies just absorb calcium better from other sources due to the calcium/magnesium ratio. Also, there are calcium inhibitors that are common in the western diet (coffee, sodas, refined sugars, excess sodium, etc), these things hinder the body's ability to absorb calcium.
I'm not sure what "steroids" Exclamatio would be referring to - but there has been an issue with rBGH given to dairy cows. It's a Bovine Growth Hormone by Monsanto that increases production of milk in the cows. This increased production causes massive ulcerations and infections on the udders which the pus and blood gets into the milking process. It then has to be treated with antibiotics, which also gets into the milk.
Hence the big hooplah over buying Organic Milk - or milk from cows not treated with rBGH/antibiotics.
All in all, I think an unbiased survey of milk is still out, it is considered to be a factor in ovarian & prostate cancer - but most surveys are all too short to be considered viable yet.
Here's an article from Harvard University that presents pros & cons without a lot of bias from either side...
Calcium and Milk: Nutrition Source, Harvard School of Public Health