I agree! This guild has been a fantastic new home for my very brief time in it. I used to be a serious raider, and burnt myself out on raiding years ago. Mists has been great for WoW for us casuals, and this guild is a great casual guild to be in.
As for challenge modes, I'm totally up for occasionally working on them once I get my DK up to 90 and geared. May take a while though. I'm to distracted by pet battles to level.