I played Dark Eldar when they were first released forever ago. I used to have a lot of them, but I lost them when I stopped playing many years ago. A couple of friends started playing again so I checked out the DE for old times sake, and immediately decided to start again. I think the models are incredible, and I like the codex even more than the old one.
When I was looking around the web for some Dark Eldar/40k resources I found this site. It is very helpful with useful posts, and I was surprised with the lack of the normal Internet negativity. I don't usually join forums, but this one was so great I decide I should.
I have only played a couple games so far with a list that was largely chosen based off units I think look cool. The posts here helped me use them well, and keep from embarrassing myself.