You need 2d paint program,3d modeler and sound programs.

good ones aren't cheap but if your willing to spend a few thousand dollars (like me) then i would recomend

going with theese: Jasc Paint Shop for textures Caligari's trueSpace

for the 3d models and Sonic foundrys Sound Forge for sound

and Acid Pro for music. and of course you will need an engine

they can cost hundreds of tousands of dollars! i think it's more

worth it to make your own (which will take up hours and hours of time).

i'm planning on making my own game (Rebounce!) using the same

products and i will need some help in time.