Surge, Grow!, Metabolic Drive.
It took me a long time to find the protein I've been using (ON Whey) because I'm lactose intolerant and had some (pretty hilarious) problems with previous brands.
Optimum Nutrition's contains Lactase itself, so I don't have a problem digesting it. Although none of the Biotest products have Lactase in them, has anyone (who is also lactose intolerant) tried them? If so, how did they work for you?