Hi, I don't know if there is a formal procedure to request that packages be supported by SL, but it would be *extremely* useful if HippoDraw, SciPy and PyX could be incorporated at some point. All are reasonably stable and are very useful tools for data analysis. HippoDraw in particular is a useful analysis package which is compatible with ROOT, SciPy is an established data processing library for Python and PyX is a high-quality plotting package for Python. I'm not sure if RPMs exist at present for these packages, but would be happy to investigate. If there is interest in including the StatPatternRecognition library from SLAC, I'll look into seeing if that can be packaged, too. Thanks in advance, Andy -- Andy Buckley: CEDAR @ IPPP, Durham Work: www.cedar.ac.uk www.insectnation.org