Last time I ever remember seeing her was as Vi in Buffy season 7. Then she's doing an excellent job as Penny in Dr Horrible. This week, she turns up as the Patient of the Week in House. (And for any House fans, here's Felica's blog about working on the ep.)
And then I discover The Guild.
If you've ever played any online MMORPG, you'll recognise yourself in here somewhere. Even if you are not a gamer, it's hysterical for its inter-personal relationships between people who are only used to talking to faceless colleagues. And some of the best one-liners I've seen for a while.