I'm looking for some freeware to create .WAV sound FX files for a game i've almost finished. I'm looking for all kinds of good freeware Sound Applications. Editors to mess with existing sounds and hopefully some software for generating FX. Also looking for anything that i can use to produce a light musical score as background music.

Everything i've seen is either crippleware or crapware. What does everyone else use? I mean, i know you cant have it all and not pay for it but its not like i can afford to shell out megabucks just to produce games for free, now can I?