Hi Andre'
You are a star :-)
I re-converted the vm again (this time paying close attantion to the "devices" tab, and i found the setting you were talking about.
I set the controller as per your first post ( LSI Logic)
The vm is now starting without any problems and all three of my disks are on scsi 
Thanks for taking the time to help, i really appreciate it.
Regards
Etienne