Articles:
http://www.sommarskog.se/sqlutil/aba_lockinfo.html
http://epmst011/index.php/Deadlocks_%28rus%29
http://rsdn.ru/article/db/deadlocks.xml?print

Sql 2000: DBCC TRACEON(1204, 3406, -1)

Sql 2005: DBCC TRACEON(1204, 1222, 3406, -1)

1222 - deadlock graph

Later see logs at %MSSQL_HOME%\LOG