On the back of bluebrad's tip off about Surgeon's Fabric set being on the Fabric podcast I've been poking around their web-site.
They have a
Fabric First members thing for £6 that has various benefits, the main one of which is it gets you their CD each month. Considering they normally retail around £10 in their online shop that seems like a pretty good deal to me (assuming you are actually getting the Fabric/FabricLive series' CDs). Also lots of live sets not put up on the podcast.
Shame they don't offer the back catalog at such a cheap price!
EDIT : Just checked, members get the back catalog at £6 a pop, so bit of a bargain to be had there.