I have spoken with a few people who think that the FARC connection is strongest in Guinea-Bissau. I was there over the summer- little to no government control of the hundreds of small islands off the coast and a corrupt military with more officers than enlisted- bad recipe. When the chief of the military in GB, Tagme, was assassinated last spring he was killed by a bomb, more typical of a FARC like operation that what was seen in GB before. A few AQ linked people were arrested there for the murder of French tourists in Mauritania. Overall, I think the AQ connection is pretty weak in West Africa in general- one of those cases where they put up the flag and we throw millions of dollars away. The drug connection is another story however with the decline of the dollar relative to the euro.
http://www.alertnet.org/thenews/newsdesk/L19487497.htm