Good luck to Isometrix, IRC junkie and forum member, who is undergoing a pretty serious operation today. Get well soon!
Ferry pointed out where THG explain that the second chips-in-flames video (mentioned yesterday) really is from AMD and uses a modified (ie, not currently available) motherboard.
A few people pointed out this AthlonXP unlocking kit on Plycon in the USA. Expensive, but easier than some of the other options discussed in this thread. OC.com have some more info about the newer bridges on XP chips.