We have used specops to deploy software onto active directory machines with no problems at all. We bought the package for use in our high school labs - some 17 of them and the product has performed excellenty - their tech support people are as good an any I have found in the industry and I've been a tech director going on 11 years now -- and, no, I don't own any stock or have any relatives working for them.
Tullahoma City Schools
Tullahoma, Tennessee