Just to clarify the issue with regard to numarray since one person brought it up. When we (STScI) are finished getting all our software running under numpy--and we are well more than halfway there--we will start drawing down support for numarray. It won't suddenly stop, but less and less effort will go into it and eventually none. That transition time (starts when we can run all our software on numpy and stops when we no longer support numarray at all) will probably be on the order of 6 months, but note that for much of that time, the support will likely be limited to dealing with major bugs only or support for new versions of major platforms. We will note the start and stop points of this transition on the numpy and scipy lists of course. After that, any support for it will have to come from elsewhere. (Message: if you use numarray, you should be planning now to make the transition if 6 months isn't enough time) Perry