I've been a big fan of this web site for a long time now - www.piyut.org.il. It records every single nusach of all religious music. So after a long week, and Shabbos is coming (but not quite soon enough!), if you need a little pick me up, try this version of Lcha Dodi. The website is funded in part thanks to a visionary grant from the Avi Chai Foundation, who seem to know how to spot amazing Jewish ideas and projects.