ok here is some good modes but first but rules 1 if you hate mods don't yell at us 2 don't question why we use mods
3 post mods 4 leave a link to the mod forum

well here is some mods I you here is some single player commands i warn you this is a very complex mod anyway
here the link http://www.minecraftforum.net/topic/94310-165-single-player-commands-v29-1-new-update/#{SIMPLETEXT1} here toomanyitems mod http://www.minecraftforum.net/topic/140684-165-toomanyitems-in-game-invedit-may-28/ there and make sure you post mods ill show videos on how to install these mods