CompUSA is a great place to buy a computer - and if you're a Mac user like I am, they're pretty much the only place to buy a computer in the area. They have a friendly & helpful guy who specializes in Macs. They also sell PC computers, games, monitors, peripherals, iPods, digital cameras, and all kinds of other electronic goodness. We love to shop here because of their extensive Mac selection.
Word to the wise - they barely ever answer phone calls. You can check stock in compusa.com if you're driving a long way or looking for something in particular.