A few more I found...
"I have placed pants vital to the survival of the Rebellion into the memory systems of this R2 unit." --Leia
"I don't seem to remember ever owning any pants." --Obi Wan
"She must have hidden the plans in her pants. Send a detachment down to retrieve them. See to it personally, Commander." --Vader
"All the excitement has overloaded the pants in my companion here." --Threepio
"If you strike my pants down, I shall become more powerful than you can possibly imagine." --Obi-Wan
"He suggests that if you remove his pants, he might be able to play back the entire recording." --Threepio
Great stuff, all! Keep 'em comin'!