Shure is a great brand to start with for getting into microphones.
For vocals in a band that's starting up, I would recommend: http://www.futureshop.ca/en-CA/product/shure-dynam
Later, if you guys hit it big, we carry a large assortment of professional grade Shure microphones that might be worth checking out. Also, I expect tickets to your concerts when that happens. 
