Hello!
I decided to post since I did not find anything pmuch anywhere related to this;
Something I wanted to share to you guys;
http://www.youtube.com/watch?v=QMldiHWmekw
WoWHobbs made a nice youtube video where you can see slot-by-slot items for Pre-Raiding (NOTE: Not Pre-Heroic Dungeons) and you can take a look at them so you know what to farm.
I take no credit over the video, just wanted to share since I had some trouble finding it myself
Enjoy =)