here is a good link to an awesome fruiting chamber you can try as an experiment. That's how I went into this project as well.
Poormans Pod - Boxes - Shroomery Message Board
As for spores I would recommend
Spores101 mushroom spore strains available in print or syringe
Very reliable and i have had 3/3 shipments with discrete success.
This is has a good tech for creating an almost self-automated fruiting chamber out of maybe $40 worth of materials. Then all you have left is $20 for spores, like $7 for mason jars, $5 BRF and $3.50 for Vermiculite. Plus I would also get some lysol spray disinfectant (great for cleaning your bathroom or kitchen when you inoculate the jars) and some disposable latex gloves to keep contams low while you prepare the jars.
You can get a pressure cooker to insure a lower chance of contams but you can use a large pot and boil the jars instead of similar success.
I know i'm forgetting some stuff but that should be you started. Click on the link in my signature for my detailed grow setup and you can see how my grow is going. The first page has a pretty good jar recipe and some other supplies are mentioned. There is also a link to good beginning shroom growing tech courtesey of shroomery.org
