What equipment for making music on the pc?

[Dange]

I currently use an sm57 hooked up to my pc to record my guitar, but i want to be able to create and add drum tracks as well as synth/piano and other stuff to the guitar ive recorded. I assume i'll need some kind of midi keyboard and software to do this? What is good software to do this sort of thing and what equipment do i need?

 

[Dange]

Just get a cheap usb midi controller keyboard for playing soft synths on the pc, then get some music software, so much to choose from, cubase, logic, fruity loops, ableton live, reason.

Do all of these allow you to add externally recorded tracks such as guitar to the computer created stuff?