If you want free wav sounds:
I could give you a bunch of webpages with a lot of wav sounds to download for free, however the best page for that is probably this one:
http://freesoundfiles.tintagel.net/Audio/
This page has serie of links sorted by category to other websites with free wav. If you are looking for something else, i would like to recommend you to do a more precise search request with the kind of free wav sound you are looking for.