Welcome back! I'm sure we can squeeze you in somewhere.
It looks like both raids teams nearly have the first four bosses on farm so it's easier to bring in a new player. Thursday's after the raid reset is your best bet.
I recommend doing LFR to at least see the bosses.
World of Warcraft
PCG Guild (Steamwheedle Cartel)
Realm First! Zen Master Cook - 25th Sep 2012