I'm sure a lot of people like me have read your question and thought - "I have no clue". However there is a forum here for "moss, ferns, and cryptogams". It doesn't say mushrooms in the title, so you'd never know it ;-)

Try posting your question there and you might find people who know more about mushrooms

http://forums.gardenweb.com/forums/crypto/

There is probably not enough light in your basement, but this
might work. We used to raise Shitake Mushrooms on oak sawdust
logs in 40% light. All went well for a few years untill we
got contaminated with algae. The algae pretty much ruined the
logs and the mushrooms. Put a bucket of water outside with a
little fertilizer in it or if its too cold put it inside where
it will get some light. Or maybe you've got a pool or fish pond
thats nice and green. Get a good bucket of slime going then
slosh it around the basement where the mushrooms are. Let it work for ahile - week or 2. Then kill the algae with
bleach. Good luck !

Regards,

Jack