We have a good group going on Madoran, we have a lot of non-boxers as well as 6-7 boxers. If you definitely want PvE, we're on Madoran Alliance Looking for a PvE Server? Check out Madoran Currently 6-7 Multiboxers in Guild

If you want PvP, check out Fur's group on Kil'Jaeden, or if you want Horde PvP, Magtheridon is where it's at.