Spec ret. Take def gear with you along the way and tank in ret. You don't need any prot talents, not even in heroic 5 mans, just get decent tank gear. SoCommand is great for AoE-tanking anyway (and with glyph you get nice mana return early)
And yeah, tank with a 2hander. But keep a shield/onehander just in case there are areas with LARGE amount of mobs (blocking helps migitating the fast incoming damage)