This is more of a general question, and partially relates to some potential career path goals. What types of businesses are adopting OS X Server (and Mac in general). A related question would be what types of businesses are purposely making the switch away from that "other" (inferior ) OS to Mac? I'm currently working on the ACSP 10.7 certifciation (mostly for my own personal knowledge), and am considering purchasing Lion Server and perhaps taking the ACTC 10.7 certfiication. Just wondering what the overall demand is for people knowledgable in both OS X client and server admin and troubleshooting. Thanks for your help and input.