"Is there anyone using anything else besides SAS or SAS assisted tools for analyzing Z/OS SMF data? If so, what are you using?"
I have involved in some IBM activity to offer an alternative (to SAS) solution to process and analyze SMF data by using TDS + SPSS + COGNOS (all IBM tools).
My part of this is to offer SETDS elements to include in the out-of-box COGNOS (and potentially SPSS) reporting, such as IT Control Charts, EV based anomaly and recent trend detection.