My stumps are erupting!

The past week or so, many of the stumps in my back yard, from trees taken down in May2012, have been exploding with mushroom flushes.
Here are some pictures and I have no clue what varieties these might be.

oops! duplicate pic.
Here is another view.

Cool. Looks like at least 3 species on the same stump. You might check the yellow one for sulfur tuft Hypholoma fasciculare. The others I have no idea.
John S
PDX OR

As it turned out, the button types in the photos opened up over a few days into even bigger "shelves",identical to the others.
Assuming they flush again while we ate at this house, I will have to go through a thorough identification. If those are indeed an edible variety, we missed a couple of pounds, easily...

Upon closer examination, the smaller ones have too thick of stems to be sulfur tufts. It would seem that they are all honey mushrooms.
This experience has 3 lessons built into it:
a) The power of suggestion: The previous post said sulfur tuft, so that's what I saw (I might have concluded that anyways to be fair, honey mushrooms are strikingly similar from above when young). Group think is particularly dangerous in politics and mushroom hunting
b) The need for up close stem and gill photos. Spore print photos are nice also. Spore prints ARE A MUST for your own purposes if you plan on eating anything and are going the self-taught route
c) Mushroom collecting requires extra patience. I am fully self-taught from books (no mentors or classes). A good rule is to FULLY 100% ID a mushroom and then wait until the next season before attempting to eat it (at which point you FULLY 100% ID it again)

PS If you are Midwest/East Coast I highly recommend Gary Lincoff's Books

I appreciate the advice and recommendation. No need to worry, I am mushroom paranoid, no chance of trying anything without a solid and confirmed id.
My base assumption is any wild mushroom is deadly.