Of course, you're still going to need a computer and speakers/headphones... And no, I'm not going to post a link to a cracked version...
For months, I thought i needed to save up to get some software and a keyboard (midi controller). I could have started a lot sooner, had I known that:
-There is a downloadable trial version of Ableton Live 8 Suite (it's what I use, don't know if this works for other DAW's), limited to 30 days per email adress you are capable of inventing. After 30 days, saving and exporting are disabled, you just enter another (valid) email adress, and there you go, don't even need to download the whole thing again! But you will need an internet connection everytime you start Live so that it can check and activate saving. No need to used a risky cracked version!
-You don't need a keyboard/midi controller, since you can either "paint" the notes in the built-in piano roll, or use your computer keyboard to press notes and start having great fun! It's also a good way to get a feel for what midi controller you might want to get later on.
(I hope all this doesn't sound like spamming or cheating, just thought it's good to know for broke people who wanna get making bleeps and booms!)
it's about making life a neverending experience of wonderfulness!