Thanks, eggplant. What a great chance to see all three of them together.
But wait, there's more: on datorrents and tokyotosho there's now a video of
Hirano Aya (Haruhi) in a photo session as a traditional Japanese archer. Shown on Voice NewType TV 2006.05.10. The master tells her about the Japanese bow's 2000-year history, and praises her for learning as much as she did in such a short time. She is strong, but self-deprecatory, and the bow hurts her hand.
She seems like a very nervous and controlled person to me. Maybe that's just the appearance given by normally extreme Japanese formal politeness. But she gives me the impression of being a driven achiever: she's a classically-trained singer as well as (supposedly) a university student, and she has been working as a seiyuu and pop singer since the age of 15 (she's 18 now). Whatever the case, the smooth, sharp strength of her voice as Haruhi, and its ability to turn expressively, is really wonderful.
Just as an aside, watching the Oricon video, I could just about see the three seiyuus' ages: Hirano Aya is 18. Chihara Minori is 25. And Gotou Yuuko is probably 30 or so (she apparently keeps it secret). In a blog post about a previous NewType photo shoot in a school, Gotou-san said that the three of them looked like two students and a teacher.