[ale] What's the best geek store in Atlanta area?

[meuon at geeklabs.com (Mike Harrison)]

I've got a customer from Dominica (a rather remote caribbean island)
showing up for a couple of weeks. He's got a long/large electronics
shopping list for himself, friends, co-workers, etc.. He's pretty sharp
and is looking for selection, price.. etc.. on everything from cameras
to laptops. And yes, he'll be shopping online a lot also, it's cheaper
to fly home with goodies then get them shipped.

I'm in Chattanooga, we have Best Buy, and Circuit City...

What's the best place(s) in Atlanta I can take him?