This isn't groundbreaking by any means and there might be some other ones floating around there, but I threw this one together in 2 minutes to update races within the npc_types table. Here it is if you like, back up your database!
Code:
UPDATE npc_types SET race = 468 WHERE race = 37;
UPDATE npc_types SET race = 469 WHERE race = 108;
UPDATE npc_types SET race = 433 WHERE race = 40;
UPDATE npc_types SET race = 454 WHERE race = 14;
UPDATE npc_types SET race = 455 WHERE race = 48;
UPDATE npc_types SET race = 456 WHERE race = 28;
UPDATE npc_types SET race = 458 WHERE race = 54;
UPDATE npc_types SET race = 464 WHERE race = 29;
UPDATE npc_types SET race = 416 WHERE race = 34;
UPDATE npc_types SET race = 415 WHERE race = 36;