Having used VMWare workstation under XP for quite some time, I threw it onto OpenSUSE 11, and I'm amazed at how poorly it performs. It's intermittent, but network copies can hang for several minutes, and the VM often becomes unresponsive for 1-5 minutes. On OpenSUSE, the CPU isn't being pegged. This was an attempt to not have to run XP natively on my workstation, but so far, it's a failure. I may try a different distro and see if it makes a difference.