This is similar to what I do.
I use a Mac only because I am expected to do things with Office (OpenOffice/LibreOffice just doesn't cut it) and Outlook is great. Though, I do all of my development/research on a Linux VM or Linux cluster. I only have OSX because of Office.
I would drop OSX in a heartbeat if I could have Office on Linux. Though, it has to have a flawless Outlook, too.