Main equipment needed for a recording studio:
1) Audio Interface (Behringer UCA-202 $35)
2) Monitors or headphones (Sony $100)
3) Microphone (Samson C03 or C06) $75
4) DAW: Digital Audio Work Station (Reaper) (Free online)
5) Computer (of course)
This is a list of the main equipment used in a recording studio. Each of these pieces of gear open up a new world for a newbie at recording, meaning the more expensive, the more high end quality you will receive. I would suggest you start low, and learning some techniques on recording. I started with a $35 audio interface (Behringer UCA-202). That was the best $35 I ever spent cause I learned so much.
Above, I have posted the prices of my gear when I started, and the names to go along with it. I spent a little more then $200 to get started not including the computer.
Make sure you research the gear you are about to buy, and all of the details that it offers, VERY IMPORTANT! If you have any questions, just ask!