I love MicroCenter. They are easy to get to (if you have a car) right on Memorial Drive in Cambridge. I'm always amazed that the employees there are always able to answer any question that I might have! They also have great prices, and run great sales. I get a huge flyer from them about every month and can usually find what I need for far less than any other retailer (online or in store!). They also have repair services - and even though the labor rate can be high, they really do know what they are doing! And they have a great Mac department too!