Ideas?

One of the more recent devolopements has been my calling to our ward's primary. More specifically, as music leader. And I'm completely lost! I've been in the calling for about three months now and I'm still uncomfortable with it. My biggest problem has been figuring out how to combine entertainment and (more importantly) the Spirit into my weekly musical activities. Add to that the challenge that is the Senior Primary. So, my quesiton for you is how do I accomplish all that I need to? What things do you remember from primary that you had fun with and made an impression? Any input would be welcome.