Love Comes Softly (and its sequels)
The Magic of Ordinary Days (the book is really good, too)
North and South (this is NOT the John Jakes mini-series)
Love Begins (prequel to Love Comes Softly)
While You Were Sleeping (my favorite Sandra Bullock movie)
You've Got Mail (my favorite Meg Ryan movie)
Have you seen any of these? What would you add to the list? Let me know in the comments.