cartalk.com or aaa.com
Sorry I don't have any personal recommendations however, those two guys on the radio, Tom and Ray from cartalk, a call in radio show on NPR (national public radio) (you don't have to be a gearhead to enjoy the show btw) has a website where you can enter your zip code and read real reviews from real people of local mechanics.
Or search AAA approved repair centers at AAA.com
Btw, do any of you remember the scene in The Sopranos where Tony had cartalk on the radio in the background during breakfast.