Giving them away is a nice idea; but, if you need the money...
First, what are the games? There is a good chance that you could get something for them on Ebay if they are popular and/or rare, so that option is open if you want to go to the trouble of shipping them. If you want to get the most money, sell them individually, rather than as a lot. It may not be much of a difference, but then again it might. If no one buys them on Ebay, you could then simply sell them to one of the many retail video games stores that buy used games, maybe even trading them for credit on a shiny new title.
Still, if you know someone who would like to have them, it never hurts to be generous.
