Music Banter

Hello everyone. I'm actually registering here to ask what is hopefully the first of many questions about making music...And since I have no clue where to post that question I'll post it here. If you want you can point me in the right direction;)

The question is: what do I need to start making music? Since I don't write music(and can barely write in English) how do I get the beats out of my head and onto a CD, or computer???

An example would be the band, Natalie Portman's Shaved Head (who's url I can't post) What all are they using? If I could get a sound like that, but way heavier, and with lyrics that mean something, I'd be real happy.

I have an acoustic and electric guitar but what else...synthesizer?, Keyboard?, software?

Oh and my favorite music isss:

90's alternative rock, especially Sound Garden
Queen, I was raised on them/my father worships them
NIN, not really anything after With Teeth but the rest is gold
AAF, their best album is TRUant, this is not opinion
I like me some metal mainly heavy and medieval sounding guitar like Jim Groce does.
....and 80's pop...