OSX and Windows together
You can also have the best of both worlds by purchasing a Mac and then running Parallel on it. Parallel allows you to run Windows AND OSX concurrently.
My bet is that you will drift more and more to OSX as time passes. We have a die hard WINDOWs support engineer at work. After a year of Parallel and OSX we always see him use OSX and he is very scornful of WINDOWS indeed.