The Kyoto Encyclopedia of Genes and Genomes is an invaluable source of information. The Cysteine and methionine metabolism map, which shows the transsulfuration pathway, the Selenocompound Metabolism map, the Citrate cycle (TCA cycle) map, which shows the pyruvate dehydrogenase complex and the 2-oxoglutarate dehydrogenase complex and the Pantothenate and CoA biosynthesis map have been particularly helpful.
Kyoto Encyclopedia of Genes and Genomes (KEGG)
