Well, you might want to go to Costco to get it warrantied. I'm not sure what their policy is, but if it's like their return policy for electronics, they should rebalance your tires.
Hunter has a search for that. http://www.gsp9700.com/search/findgsp9700.cfm
I've heard people recommend Tires 23. Lots of places have them.
For aligment, I like Al Tech. They did a nice custom alignment for me for not too much $$$.
Al Tech Automotive Limited
384 Olivewood, Etobicoke, ON M8Z 2Z9