Yo Smiley, There are a few freebies on the FoxPro site, plus Foxbusters site (the secret weapon), also SFX sounds, just have to look for .FXP, .mp3 & .wav files (suites mine). There are other sites as well and a quick internet search should work.
I've got pigs (actually calls up pigs too), cats, cattle, sheep, chooks, dogs etc., depends on what's around the property where you are hunting and gives me a wide choice.
I like to vary the sounds, not get stuck on the same selections in the same area.
Cheers...