Ulli Hankeln, owner of Sanbarrow.com VMware hacking site, wrote a software able to convert any VMware virtual disk from IDE to SCSI, without using imaging/cloning solutions: I have written a patch that converts a XP-ide-disk into a XP-buslogic disk. No imaging or cloneing necessary. All you have to do is edit the vmdk-descriptor and run the patch from BartPE. It fixes disk-geometrie and boot-device in registry. He posted the news but just few answered. If you are interested tell him and we'll see the tool published.