I've always been using PC's for office stuff, but was using a Mac running OS 9 and OutSpoken to use Pro Tools. However, because of the fact that a current version of Pro Tools is not accessible, I've never been able to upgrade and use newer softsynths and such. So, I have migrated over to the PC and am running Sonar. I still have my Pro Tools machine encase clients need me to do something in that platform, but with my plunge into Sonar, I haven't launched Pro Tools in about 8 months.