The standard response will likely be to just go all elemental. Restoration doesn't do much for you until the higher levels anyways, so your heals won't be hurt too much by it. You don't really want to have to deal with melee when multiboxing, especially with a 5 man team.

Personally, I'm doing a full on mix-up, 2 enh, 2 ele, and 1 resto. But I'm stupid crazy, and not a single person here, including myself, would recommend to do it.