Siemens S5 PLC

Hi everyone
I am currently looking for software to work with a Siemens S5 135U PLC
I would like a windows package and have looked at the Fastrack workshop Demo software which appears ok.
If anyone has experience with this, good or bad or can recomend something else I would be very grateful.

IBHSOFTEC

http://www.ibhsoftec-sps.de/english/Selection_Software.htm

Try the demo-version with integrated simulator:

http://www.ibhsoftec-sps.de/english/Downloads_Demos.htm

I still use the Siemens Software Step5 V7.23 under WindowsXP but PG2000 is another well respected package.

http://www.process-informatik.de/produkte/step5--step7---programmierung

Nick