Have worked with Windows for 10 years - have seen pretty much all major issues of 2000 and XP, and can probably resolve most Windows/OS-related issues...
I fail to understand when everyone says how bad Vista is - it isn't - it is a good OS. XP had some major issues at the start - people tend to forget that.
Mainly use OpenSuSE 11.0 for personal IT use - would recommend Vista Business/Enterprise for business client use.
A big fan of VmWare - keep up the good work.
Update (May 08)
No longer participating regularly; I am tired of power-hungry admins and moderators, who have grandiose notions that they are more important to EE than participating Experts - especially a couple around the XP/Microsoft OS zones.
One last thing - Experts that participate in answering questions are VOLUNTEERS. If you treat us respectfully - then you can expect the same in return.