Scarlet Monestary Small Radiant Shard Farming (Classic - WoTLK)
Farming SM Armory and Cathedral has been known as one of the best ways to get small radiant shards for enchant firey weapon ever for quite a long time. SM Armory is better for farming the small radiant shards if you're low in level. Cathedral becomes easy probably right around level 70. At level 60 Cathedral was still pretty hard especially if you ran inside and just pulled the bosses. One upside to Armory though is a chance at the Scarlet Tabard which will go towards your total tabard achievement and is a nice tabard you can wear!
Depending on what SM you run will determine how much gold you make over all. Cathedral will probably be double whatever armory for total gold made, especially if you count in all the extra elites they will be looting after they take out the bosses.
Items of Interest
Small Radiant Shard
Tabard of the Scarlet Crusade