USK, Maru, Vukeme, Anamanaguchi(?), Amor Antiquita, She, etc.
USK, Amor Antiquita, and Maru are my personal favorites.
If you haven't checked it out yet, 8bitpeoples.com has the most chiptune artists.
As for anime related, I don't know much chiptune that's related to anime, but I know a lot of hardcore/speedcore/gabber that is.
If you're interested, DJ Sharpnel, M1dy, DJ Chucky, and Spy47 are very good.
For links, check out this page:
http://www.myspace.com/1337promotionsinc