Moving an object from hand to hand.

Could anyone link me to a good tutorial, or give a description on how to have a character move an object from one hand to another?

Every time I try the object gets relocated along the entire animation.

Copy Location constraint on a bone/empty of the character. When the character grabs an object, turn the influence to 1.00. When the character releases an object, turn the influence to 0. using constant keyframes might help out too.
hope that helps.

waylow answered this question with a nice example a little while ago… you can see the thread here.