That is the exact set up in my own home. Windows is the mainstream since family is used to it, but Windows for the mundane, Linux for the fun and exploration, but Mac for all my home video editing.
Frankly, I just don't differntiate between the three. I am just glad to have access to all three if I choose to. Choice it is a beautiful thing. Only a vending machine can get away with over charging, dropping your snack to the floor, and make you bend over to pick it up.....repeatedly.
Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
