The Hamdan decision is a step forward for the rule of law in the U.S. and its fiefdoms, or at least a refusal to take another step backward. Particularly in the apparent holding that the Geneva Conventions do apply to the so-called War on Terror. But it is by no means the end of the fight against torture by the U.S. and its allies. (I oppose torture by anyone, but the U.S. is the country I can do most about; and since it's the most powerful nation, and the best placed to be an exemplar of human rights, torture by the U.S. is especially harmful.)
Blog against Torture (by the folks who brought you Rummy's Diaries is a place to keep checking. This is a good post on how torture is bad no matter who does it to who. This on the dehumanization of the Guantanamo suicides. All worth reading.
And in case it needed to be said: