I have some loop packages that you can download for free. They are in ACID/WAV and REX2 formats and are aimed to electronic music production. You can download them from the "FREE SOUND PACKS" section of my website. Here is the link:
http://www.equinoxsounds.com/products.htm

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Royalty free Ambient, Chill- Out and Trance loops
Equinox Sounds