I have $450 to build a Minecraft gaming PC. I know nothing about computers other than buying a prebuilt one is a waste of money. I know $450 isn't a lot, but I would like to be able to play on low-medium settings at around 100 FPS (if possible with this budget). I already have mouse, keyboard, speakers, moniter, OS, ect. I ONLY need the tower! Thank you very much and merry christmas.