At2020 is a wonderful starting point for vocals and is so versatile for other things if the need arises but needs to be phantom powered with an audio interface, although they might make a usb version that would probably be great. Sm58 or 57 by shure is unbeatable and no phantom power required (still need an interface to record). Also love Heil microphones, they make a great $110? mic similar to the sm58 which I think is slightly better. Really, whatever your budget can afford will get you off on the right foot these days