The reason I'm even posting about Princess Resurrection is because it is an anime that has a lot of werewolf and shapeshifter content. A main character, Riza Wildman, is a half-werewolf, other werewolves often show up, and there is a werecat, a wereshark (to those who are always looking for queer shapeshifters, take note, the wereshark is a lesbian) and a race of immortal phoenixes who can assume human form (these phoenixes are quite central to the plot, but we don't find out about them until the last few episodes). Plus, there is a tanuki vampire hunter minor character, but he doesn't seem to be a shapeshifter.
The bad news is that most of the free videos have been removed from the Internet. The good news is that the show will be licensed and distributed in America.
Of course, these two events are linked. The widescale removal is because of the licensing and upcoming release set for March 17, 2009. However, they haven't managed to remove everything quite yet. If you're curious about Princess Resurrection it would be best to catch these remaining online videos before they disappear as well:
After the season finale, there are two bonus episodes, generally called episode 25 and episode 26. The last one, episode 26, is especially difficult to locate online, but I found one English subbed copy here.