I am also a Mac user, but the online version of Big Oven is starting to get fairly powerful, so I am beginning to think software as a service with a subscription fee would be both more convenient for me and better for Big Oven. I would be happy to pay a one time fee or potentially even an small annual fee if I could store my recipes online (privately) and better yet if I could share them with others (invited) online. I frequently travel and cook from different locations so an online version that I can access from anywhere would be great. But I need to have my private recipes segregated from my shared recipes segregated from the public published recipes. The addition of the online shopping list really enhances the Big Oven website functionality, but I am wiling to pay for something that more closely approximates the capacity of the windows desktop version