I don't trust any audio shops! Too many shops have proved me right in the past that no matter how knowledgable they are, someone always messes up my install! or makes a complete mess of things! Its DISGUSTING.
Only guy I trust to do an installation, is Paul Christians from our forum, (or myself). He is da man when it comes to audio. One of the only guys that can keep up when we start talking audio. Then blows by me when we start talking about design. Sheer genious I tell you!
You can also buy some nice gear from Paul Christians if you would like to! Much better pricing than Audio to Go.
Even at Audio to Go's cost pricing, Mr. Paul Christians still can do better.