So what we need to do is start at Blood furnace and work our way up. What does this mean is we need to do each several times until we have the stuff we want and then move on. Some of these places we may be able to do 2 to 3 times a night if we have the time. This also can be very profitable for us all.
I suggest you look At Allakazam, Thottbot or the Armory and see what drops in the different dungeons so you have an ideal what you like to have. Another place you can visit is http://www.wow-loot.com/.
Gear, Practice and good old fashion Fun will get us over the rough time we going to have.