Extended Items and Ores Mod by Creares
upgrades minecraft by adding new ores and items to find and create.
Zoestra // Valoeghese's Basic Expansions by Valoeghese
A bunch of basic additions, especially in the field of biomes
Dungeoneer by Muddykat
A mod that add's Worthwhile dungeons to mincraft. if want a copy of the source code for Dungeoneer please email me at firstname.lastname@example.org