Urban Fantasy, Paranormal, Psychic, etc.

My husband watches a lot of the Sci-Fi channel. Therefore, I'm exposed to some shows I'd probably not watch left to my own devices. And I really like some of them. OK, most of them.
I'm noticing that there's more and more of the weird out there. And not just on the Sci-Fi channel. Heroes and Medium are both on NBC and are both hits. Dresden is doing quite well, I believe on the Sci-Fi channel. I've seen trailer so for several new shows that deal with psychic ability and paranormal activity.
And this is prevalent in books, too. I understand that paranormal romance is the fastest growing segment of romance books right now. And Urban Fantasy seems to be on the rise. Jim Butcher (The Dresden Files) will be the captain of a panel at Romantic Times this April. I've had the pleasure of meeting Jim at a couple of conferences and I'm looking forward to hearing what he thinks about why people want to read about witches, werewolves, vampires, gargoyles, demons, ghosts and anything else that goes bump in the night. The reason this is so fascinating to me is that I've been making notes on a book that I want to work on after I finish the one I'm half done with.
And it wants to be an Urban Fantasy.
At first, I was more than a little surprised. Then I realized that I really like to write things that are just a little over the edge (and if it's the bleeding edge, all the better). So, maybe that's why it appeals to me.
So, what do you all think about the Urban Fantasy and Paranormal genres?