Wow, nice welcomes from everyone! :)
As far as gaming goes... Growing up I was mainly a Playstation girl, so I'm a big Final Fantasy fan. But don't talk to me about 13 because at the moment I have no access to a PS3 or 360. :( I do have Pokemon Diamond, though, and I've played SSBB (Meta Knight is pretty awesome btw). I also like Halo, Assassin's Creed (played AC2 on my brother's 360 and I've been missing it like crazy ever since), and Silent Hill.
On the anime/manga front, I've been keeping up with Skip Beat!, Kimi ni Todoke, Genbu Kaiden, Saiyuki, Wild Adapter, xxxHolic, and Until Death Do Us Part. Some other long-time favorites include: X/1999 (when is CLAMP ever going to finish this, seriously), Gundam Wing (hurray, gateway anime drug), Code Geass (I will totally admit that I can't watch the ending without crying), and Prince of Tennis (...I don't know what to say for this one). Numerous others, too, but those are probably my basics. I haven't read Nodame Cantabile, though it's been on my to-read list for a while.
Music-wise, my #1 Japanese band is L'Arc~en~Ciel. I also like UVERworld and Bump of Chicken. Some Janne Da Arc and Acid Black Cherry, too. Lately, though, I've been more into Kpop--groups like Epik High, TVXQ, and Big Bang. I highly, highly recommend Epik High:
[youtube]http://www.youtube.com/watch?v=YnjpWgPLxk0[/youtube]
Seriously, they are awesome.