Currently I'm working as an IT Manager and Webmaster for a group of small companies. I work mostly with FOSS projects like Magento, Wordpress, Django, and jQuery.
I use Linux (currently Ubuntu, but that changes occasionally) in a few places and Win 7 for my main desktop due to needing the adobe suite for workflow. I was only able to avoid Adobe and use Gimp for so long... Now I have to work well with other designers and they all use Adobe.
Excited to be taking the plunge and moving to Mac OSX now. Easy to use so far. But not "obvious" after working with windows for 20+ years.