Hi! How are you! I hope that more than one of the fandoms/pairings I offered is something you feel comfortable writing.
Um, I'm just going to point you at the
Dear Santa letter for Yuletide this year. I think it covers everything. Just ignore the fandom specific stuff.
Well, and I'll give you fandom specific stuff here.
I see an Ugly Betty or Eureka story as probably being humorous.
I see a Buffy story as having an ugly undercurrent of violence.
I see a Greys's, Big Love, or SGA story as able to support any kind of tone.
If you pick Eureka or SGA, something science-fictiony or worldbuildingish would be awesome.
Hot sex is nice, but not required.