I love the heroic quests...but I don't like standing around looking for a group. As mentioned earlier, a lot of people already did this content in the beta and don't want to waste time grouping up.
I would love to see a separate chat 'level' for LFG. That way 1) I wouldn't have to constantly see "LFGXXXLFGXXXLFGXXX" spamming every other chat line in the general box. and 2) it would be extremely easy to type "/LFG tank" (or healer,dps, etc.)
Just a thought...