If you are serious about making mitre joints go with the Eagle America or Whiteside (who makes Eagle America). If you think you may only make a few you might want to try Yonico. Most members who have used them are happy with, especially for the price. I wasn't recommending them as much as using them for a reference.
Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.