Dan, bumping this so hopefully someone more in the know than I will respond. My first thought is that they might rob nitrogen if used as an amendment. You could use them as mulch.

If you can get them, coffee grounds are a really good amendment. I get them from my Starbucks and my GA clay is better for it.

If there is enough of that wood to amend the soil to around 6 to 8 percent organic matter you have enough, otherwise you will need more organic matter. However, the more variety of material you use to amend your soil the better. Depending on whether that wood is tilled into the soil or used as mulch will determine whether there might be a short term nitrogen depletion. Coffee grounds can be used as part of the organic matter soils need but it should not be all that is added.

dan, maybe a good time to read about lasagna gardening. You could add some good stuff now - cardboard, coffee ground, table scraps, tons more. I've been happy using wheat straw with my Georgia red clay. These things won't rot, be used up before spring planting time but will all be good amendments.