I'm so sad right now :S "Nimisha's Ship" started my enduring romance with Speculative Fiction of every kind. Pern got me through many years of bullying and mocking in high school and "Freedom's Landing" influenced my writing more than almost anything else.
McCaffrey is also responsible, in a good way, for getting me into RP (web-based writing games), writing (through fanfiction), MMOs (Pern MUSH), filk (Masterharper CD got me looking for more fan-made music) and made me consider someday being published (through the Writers of the Future contest which she judged) as a dream that could become reality.
We may not always have seen eye-to-eye on things, like how she was not fanfiction friendly and all that, but she was a real force in the world, in mine definitely.
Clear skies and fair weather, Dragonlady!