Note: this post is from 2008, outbound links may be broken.
Equinox Sounds releases Free Electronic Drum Loops (REX2)
Equinox Sounds has released a collection of 20 free electronic drum loops that will offer you the foundation to build a wide variety of electronic music.
These grooves have all been recorded at 60BPM and converted into REX2 files so you can use them for downbeat styles like Ambient, Trip-Hop, Experimental… and increase the tempo up to 130 for more upbeat styles like Breakbeat, Drum & Bass… without affecting the audio quality.
You can find the download page here.
Visit Equinox Sounds for more sample libraries, both free and commercial.