We have an extensive sound effects library to enhance your animations with everything from lasers and explosions to ambient background sounds and music.
We also have a broadcast quality microphone, mixing desks and software such as Adobe Soundbooth and the free Audacity.
More sound effects can be found online:
youtube.com/audiolibrary/soundeffects (requires Google sign-in)
The StopMotionPro Web site offers a nice collection of sounds as a free download
The BBC has released 16,000+ free effects http://bbcsfx.acropolis.org.uk/
The official Star Wars site includes this great collection of sounds and quotes.