Wow, tons of replies! Thank you for all of the advice. This has helped me put some things in perspective.
I wish I could do it myself, but I have young kids and no time. Plus, my best home improvement jobs would earn a "B" grade, yet I really want perfection (or at least an A- job). So I don't mind hiring it out, I just want to make sure I don't get scammed.
@paintdrying: This note of yours is really what I think: "I would want everything completely square" (I am that picky too)
@CoconutPete: Thank you for the notes, that's definitely a good reason to use caution.
Thanks to everyone for all of the replies. I will make sure to get a parts & labor estimate from the designer I am meeting with in a 2 weeks. That way I have a better understanding of WHY it is costing so much.