FluffyAudio has released a free sample library of log drum samples. This set comes with 258 samples, which should be plenty of variety to mix into your tracks. Even if you don’t use these samples very often, you really can’t beat that price. Listen to the demo track before you make any judgements.
You can get more information from the full article here: http://www.kvraudio.com/news/fluffyaudio-releases-my-log-drum-free-sample-library-for-kontakt-21805