Microphone selection

I need help at selecting microphone and it's equipment. I need it for youtube vlogging and youtube music. I also would use it to record music (vocals, guitar). If it's important with what i would be shooting, i'm going to use nikon d5100. Feel free to give your suggestions

I really love AT2020 but that mics begs for a preamp with phantom power. I guess you could buy an USB mic or something like that, but on a $100 budget at2020 is the best mic there's…