I've just moved to a new server to play with multiboxers, apart from the Guild I don't know anyone else who plays. Only my transferred toon is level 85, maybe I'll be able to join up with other multiboxers for bg/raids when I get other chars that far.

I think I know what you mean about levelling 4 versus 5. Back to back LFD on your own can get a bit boring, although there are no loot issues to think about!

Maybe I should stick to 5 boxing for now, what with MoP coming out - I'll be spending enough time levelling 5 new pandarian monks from scratch..