B777 CAPT REPORTS REROUTE IN FOREIGN AIRSPACE TO COMPLY WITH NOTAM NOT SUPPLIED BY DISPATCHER. MIN FUEL IS DECLARED AT DESTINATION.

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ENRTE WITH MONTREAL CENTER; GIVEN NEW ROUTING DUE TO NOTAMED REQUIREMENT TO BE OVER NOTAP AND TVC VOR FOR OUR ROUTE. CHECKED OUR NOTAMS RECEIVED AT DEPARTURE; FOUND NO SUCH INFO IN OUR PACKET. NOTIFIED DISPATCH; INCLUDING NOTAM NUMBER; ETC; AS PER CENTER INFO. WITH INPUT OF NEW ROUTING; PROGRESS PAGE INDICATED :12 MINUTES MORE FLIGHT TIME AND 3000 POUNDS MORE FUEL BURN. DISPATCHER REWORKED FLIGHT PLAN TO GET NEW NUMBERS TO WORK REQUIRING NEW REDISPATCH POINT OF 'ABEAM CYUL' VS DENGA WHICH IS MUCH FURTHER WEST. THIS RESULTED IN US GETTING OUR REDISPATCH INFO AFTER NEW REDISPATCH POINT. PARTICULARS OF NEW FLT PLAN (STARTING WITH INFO FROM EUROPE -- NOT PRESENT POSITION) WITH WIND MATRIX CLOGGED COMPUTER WITH EXTRANEOUS; DISTRACTING AND USELESS INFO; POTENTIALLY IMPACTING OUR ABILITY TO DEAL WITH IMMEDIATE CONCERNS. CAPT ACCEPTED REDISPATCH BASED ON EMERGENCY AUTHORITY -- SAFER TO GO TO ORD THAN NEW REDISPATCH ALTERNATE OF TOL. CONTRIBUTING FACTORS INCLUDED BEING IN FULL MODERATE TURBULENCE AT THE TIME AT FL260 DUE TO UNFORECAST STRONG HEADWINDS AT FL380. ACFT JUST IN FRONT OF US WAS PROVIDING TURBULENCE AND WIND INFO ALONG OUR ROUTE. DIVERSION SOUTH WOULD HAVE PUT US WITH WINDS AT LOWER ALTITUDE FOR LONGER PERIOD. ALREADY EXCEPTIONALLY BUSY PERIOD DEALING WITH TURBULENCE/WIND ALOFT ISSUES. DIVERT WOULD HAVE ADDED MORE POTENTIAL DISTRACTION PROBLEMS. CONCENTRATING ON RETURNING TO SMOOTH ALTITUDE; AVOIDING POTENTIAL OVERSPEEDS DUE TO TURBULENCE MORE CRITICAL THAN MASSAGING REDISPATCH NUMBERS WHEN WE OBVIOUSLY HAD ADEQUATE FUEL FOR SAFE ORD ARRIVAL AND AGAIN CLOGGING COMPUTER WITH MORE NEAR WORTHLESS PAPER. NOTIFIED DISPATCH OF USE OF EMERGENCY REDISPATCH AUTHORITY AND CONTINUED TO COORDINATE WITH DISPATCH FOR FUEL AND LANDING DELAY INFO (ALMOST NONE) FOR ORD ARRIVALS. FOR ARRIVAL INTO ORD DECLARED 'MINIMUM FUEL' DUE TO EXTRA BURN BECAUSE OF BOTH NEW ROUTING AND UNFORECAST UPPER WINDS. NOTIFIED DISPATCH OF THAT. LANDING TOTALLY UNEVENTFUL WITH ABOUT 1 HOUR FUEL ON BOARD.