Minecraft 1.2.5
Forge
Optifine
Modloader
Modloader MP
The Art of Painting, is still on 1.2.5 and likely dead,so I probably won´t use it anymore
Claysoldiers, the Claysoldiers are funny and required for my arena.
Shelfs, usefull for example in the supermarket
Tinyblocks, will update when the modding api comes(never), will be replaced with redpower
Powercraft, used for automated things, logis and some other things
Buildcraft, used for getting items out of devices
GregsLightning, very usefull for making light
IC², nothing to say
Nuclear Controll, as well, it was just a test, because I will start going nuclear(TM) in the 1.4.x
Gregoriuscore/Lightningrodaddon, nothing to say
AdvancedSolars, very usefull for making energy
GraviSuit, usefull and cool
Portalgun, We must because we can
Railcraft, I like to redinfe my rails, but I will start to use it really later, when I build factorys that are more far away.
Secretrooms, good for easteregghiding and using less bad-looking buttons on walls.
Steve´s Carts, usefull and easy way to do some cool things, but I don´t know what to do with my cart table in SC2
Seed Manager, taking the hassle out of agriculture