Mushroom Grow Kits

Well ive recently been wanting to experiment with shrooms and decided that it would be benificial for me to purchase a grow kit. After a few minutes of searching online i realized it was going to be some trouble finding one but i had a few questions to ask. Have any of you grown your own shrooms from the kits? If so, was it easy? Anybody know of a trustworthy site that i can attain a grow kit? (You can PM it to me). Am i to expect a high yield from these kits?

Any other information is very much appreciated.

Thank You

-JohnnyBlunt 4:20