Thunderlord is in CST, which is (I believe) the forum default, since it's the same zone as Winnipeg and my area.
I've got a 61 Warlock (actively working towards 70, that mount is sexy) on there, Joetheodd. If you roll tonight and I'm not on him, I'll probably be on Shammypimp, my (obviously) Shaman.
If you want to roll horde I've got a 34 Undead Mage (also dubbed Joetheodd) on Cho'gall, but I log him on once every, eh, month or so.