Well, I haven't actually started 10 boxing yet, but my intention is to run the 10 man dungeons of WotLK for badges and loot, while running around the world with 10 characters in 2 groups doing dailys simultaneously. While I will be running 5 mans, chances are it will be in the capacity of whatever group makeup I want to take (having 1 of every class is nice) and not really to overly farm loot.