Reich's wonderful Mallet Quartet, Dance Patterns and WTC 9/11 (performed by the Kronos Quartet) is about to be released on CD/DVD. WTC 9/11 can be purchased from iTunes and Nonesuch now and the whole album is streaming (for a while) in the link below:
http://www.npr.org/2011/09/04/140144067/first-listen-steve-reich-wtc-9-11
Reich's percussion pieces have been an influence on Peter Gabriel and this can be especially heard on this 3rd and 4th albums, as well as on Slow Marimbas on the Birdy soundtrack.
I was at the UK premier of WTC 9/11 and am really pleased to see it released on CD. It might not be to the taste of many PG fans, but is worth a listen for people not familiar with this inventive American composer.