You got to go check out Rekkerd.org! Not only does the site give up to date audio software news and reviews but they have a pretty extensive collection of drum samples, loops, VST’s, and sound banks that they offer for free download. You can download their entire sample archive of about 650 MB!
Make sure you scroll to the bottom of the page and download some of the sample collections posted by other contributors because they are not included in the Rekkerd sample archive. Personally, I liked the Funkybot 90 Claps.