Mr. Gerosin, I am also thinking of purchasing the chammp software. I am trying to justify, in my own mind, the cost vs. need syndrome. It sounds great and does a lot, but I don't know If I have enough people, isotopes, labs, etc. to fully utilize the system. Therefore why spend the $$. I would seriously consider your program size vs. cost prior to purchasing. Denny Rinkacs RSO, Carnegie Mellon Univ.