DEC have a similar answer, although with a slightly different slant, on their FAQ: http://www.dec.org.uk/item/186/248/0/0
I also particularly like that they have a "frequently asked question" of "I have a plane/yacht/helicopter/cargo ship/tent. Where will it be of use?" Seriously, cargo ship!
Great post. I'd never thought about the incineration of useless items or the extra help from purchasing aid items within the affected country.