I have a level 70 Human Warlock on Terenas US server, guild is Dead on Arrival, if anybody's interested. I also have a Tauren shaman on the horde side, not sure if she's even guilded anymore. I swap between, I get pissed at one guild, then go play with the other for a while, but right now, DOA seems to be okay.
We're good to newbies when we have the time, it's a small guild, we're raiding Karazhan weekly and working our way towards Zul'Aman, slowly. We have some agreements and arrangements to do Gruul's Lair and Black Temple with some other guilds, but if folks are interested, DOA's always looking for people and if you dig us, we'll be welcome to have you. Most of us are older players, between the ages of 18 and 60.
I've been playing since closed beta and so have a lot of our other players, so we'd be happy to help you out if you're looking at someday getting to the raiding scene. Sadly, with work and Samurai, I don't have the time I used to to raid, but I can answer any questions you have.
I have to upgrade Sam's pc so that he can join the World of Warcrack too...someday when I actually have a minute.
Shael