101507 Artist Kenneth John KEN
there is two types of 2D animation that you will deal with. first, if you are going to deliver you finished product over the web, you will use adobe / macromedia flash software to prepare your end product (adobe systems bought out macromedia products). other software that you will use to build the end product will be adobe illustrator and adobe photoshop and an html editor like adobe / macromedia dreamweaver. flash produces a compressed file for the internet, called a shockwave file, that plays like movies or you can also make it interactive for your user, using a program scripting language called actionscript.
the second area of 2D animation is delivery on a digital dvd or tv analog signal. the industry standard for preparing these type files is adobe after effects, which is a 2D animation compiler and visual effects software for video editing. you will also use adobe photoshop and illustrator to make some of your objects in the movie.
all this software is fairly expensive. so invest in the right products the first time. these are the industry standard now and have been for quite awhile.
ps - learn to use a graphic tablet!!!