On Horizon last night at the start, and somewhere in the middle, was a bit about Hazel Barton looking for antibiotic producing microbes in caves. Don't bother watching all the program though, it is pretty poor!
http://www.bbc.co.uk/iplayer/episode/b01ms5c6/Horizon_20122013_Defeating_the_Superbugs/

I wonder in the future if we will be paid by pharmaceutical companies to go digging 

I have patented the name Goonicillin for the organism that grew on Goon's blood after his accident some years ago in Claonaite 7. Photo is in the GSG Golden Jubilee publication which is very reasonably priced