I've been chock full of links lately simply because I've been so busy. This time it's a link to an article that appeared in JBL (Spring 2005) concerning Genesis 9:20-27. I think Drs. Bergsma and Hahn have argued for an interesting interpretation - maternal incest on the part of Ham. Really intriguing. Give it a read!
Noah's Nakedness and the Curse on Canaan (Gen. 9:20-27)