One of the guys that races on the other forum put a post up the other week about loggers..
"Ages ago I bought an Elmscan5 & have several logging/display applications (EEC Analyzer, OBD 2007, ProScan, ScanMaster-ELM, ScanTool & ScanXL). The issue I had was either the car, the OBD unit or the S/W just didn't seem to pick up that many PID's. ScanXL could detect just 63 of 195 known PID's."
Am guessing from that he uses ScanXL