Uh, I took the vampire and gave them a whole heirarchy called Lines (6 of them) with Elders at the heads of those lines and the First (Vampire) above them all. They have no issue walking in sunlight (it hurts their eyes and going to put in that it somewhat weakens their powers) and their eyes change color with some emotions (example: red in the eyes equals anger; completely red eyes = run the HELL away, stuff is about to get destroyed. All use Power (yes, capital P), which is basically energy around and within them that they can lash out with in invisible waves. Some have small power over certain elements - such as the Cyclaryn Line which can use fire.
There are also Slayers (separated into eight Clans of slightly enhanced humans that hunt vampires), Witches (separated into seven Sects, four with control over elements and the other three are Healers, Seers, and Shapeshifter respectively), Werewolves (five Packs; also immune to silver and can change at will but must change during the full moon), Halflings (those of only half Slayer blood or Witch or Werewolf or, even, vampire - which is difficult to do and only a handful exist) and of course vanilla humans.
I actually created a message board role-play years ago based on all this. Here's the link to the webpage that has all the info on it -->
http://www.terion.net/vampiredust/ . There's a link to the current incarnation of the message board there too. There's only 3 of us going at it right now but we're expanding the plot line of in-story characters so we're fine with that. Also, the last three on the Species list (exclude the Halflings) don't exist within the real storyline. Well, the last one MAY. Dunno as of yet.
The main character of the whole story is Darien O'Connell, a 362-year-old Irish vampire. He lost most of his memory when he was turned because he's nearly something called a Rogue (basically vampire's that go insane with bloodlust and kill everything; also are more powerful, which is why usually its the First and one or more of the Elders that hunt them down and kill them). His memories return some years later and he's abandoned by his Sire. The story moves into present times after that, where Darien's an FBI agent based in NYC with a human partner. From there there's attacks from Slayer and Witches alike with Darien trying not to get his partner killed and keeping his harsher side at bay.
...now that I've prattled on for three paragraphs, making an enormous post, I'll go away now. Have to go to class.