Spuffy Forever!! Have you seen The Frisky Firefly's buffy/firefly xover series on FF.net? (it's Rayne, of course) If not, you should read it... Anyway, she has Buffy and Spike ending up together and through various means, they are actualy Jayne's parents. It's a pretty cool series.

Anyhoo...I loved Willow and Oz, so yeah, I agree, they're pretty darn cute!