1. July 14, 1999: US government informant Randy Glass records a conversation between some illegal arms dealers and ISI agents, held at a restaurant within view of the WTC. An ISI agent points to the WTC and says, "Those towers are coming down." Glass passes these warnings on, but he claims "The complaints were ordered sanitized by the highest levels of government." [WPBF Channel 25, 8/5/02, New York Observer, 10/1/01, Palm Beach Post, 10/17/02] (I think the ISI agent(s) referred to is R.G. Abbas).
2. September 6, 2001: Antoinette DiLorenzo, teaching English to a class of Pakistani immigrants, asks a student gazing out the window, "What are you looking at?" The student points towards the WTC and says: "Do you see those two buildings? They won't be standing there next week." At the time, nothing was thought of it, but on September 13 the FBI interviews all the people in the classroom and confirms the event.
(I may have missed it, but the wantoknowlink above does not mention ISI chief hobnobbing with CIA officials on Sept. 10/11th in D.C.; and alleged transfer of large sums of money to Md. Atta by the ISI chief.)
3. The National Security Archive: Documents Detail Years of Pakistani Support for Taliban, Extremists http://www.gwu.edu/~nsarchiv/