If you think that you are really good, there are some heroic guilds that manage do heroics in 2 days, (4h/day)
OMG ITS A LIE, ITS IMPOSSIBRU..
http://www.wowprogress.com/guild/eu/.../Group+Therapy
Group Therapy its possibly the best exemple, they
raid 8 hours week in 2 days, and are EU 168 in WoWProgress and
13/13H as a 25 man guild. That is really hard, having a tight raid schedule means you must choose between progression or gear sometimes locking CDS and etc. But as they say, they are always with open doors for exceptional players.
My guild is 4/13H, and we will start to locking CDs next week, cause we simple dont have time to clear content and progress on boss as we raid 9 hours/week. Most of my guild lives in the same city, and are friend IRL, we play WoW in the same guild since Vanilla (We were officers back then, and reformed the guild into 10 man group in WOTLK).
So as you see, there are groups that progress trough content, and dont need to raid everyday. WoWprogress is probably the best place to find a good guild.
"Its not a job, don't wanna submit an application.." Well, guess how good guilds are good? They need to invite good players, how they will know if you are not bullshiting them, talking that are good and stuff, and when they need, you will do 70k dps in 530 ilvl? They need at least to see your logs, how you are, etc.. etc.. This is just people beeing LAZY.