Primarily I have things to watch -- Jeremiah, Stargate -- and things to write -- Harry Potter, Harry Potter, Harry Potter. (All for challenges -- when those are done, I'll be branching out a bit more.) I would add FMA to the "things to watch" only I finished it last night and now it comes under "things to angst about". More on that later.
With luck, I'll also catch up on my backlog of email to read and respond to, some random LJ comments I still have left, and any other forms of fannish communication I'm behind on.
I love being able to just suck a TV show down episode after episode. I fondly remember my December break when I watched through all of Gundam Wing in less than a week. It's much eaiser to get emotionally invested -- there's so much tension that doesn't get broken by commercial breaks or waiting a week for the next installment. Watching B5 S4 that way nearly killed me, actually, I got so emotional over it.
That was also the way I read OotP for the first time. All in one go, with the same amount of tension as watching a new Buffy episode, so nervous about what canon was going to throw our way. The second read was much more book-like and enjoyable.
Ack, going to be late. Just a few more hours and the media-fest can begin!
ETA: I saw on slashdot yesterday that SciFi is doing a Ringworld mini-series. My first thought: I wonder how that will affect my Google ranking?