While I was away (that's my excuse), a load of bootlegged John Bonham drum tracks appeared on the web at: http://www.disndat.info/bonham/. They're completely clean tapes, recorded at Abba's studio in Stockholm in 1978 during the "In Through The Out Door" sessions. It's a sampler's dream.
The site has gone down but after a LOT of Googling, I've found 8 of the tracks here (scroll down and hit 'start searching') and another one (probably the best track) here. Alternatively, celebrate the genius of John Bonham by listening to the MIDI file on this page.