For geeks, this is a wonderful place, for the uninitated it is a nightmare.
There are row after row of parts and equipment for sale here. The majority of it is used, and my husband has purchased computer parts here often.
They carry every type of electronics you can imagine. Not a great place to buy a computer however, as most are older and overpriced for what they are capable of.
This company also has a large ebay store and there is a huge selection there. It's probably easier to shop there and then go pick up. That way you don't get lost in the store.
Before marrying a computer geek, I was taken advanatage of here as a woman. I took a computer in for repair and I ended up with them replacing things that were not broken, but that they felt would be a good upgrade. Of course they said we'll take the part off if you like but by then, I just wanted my computer back.
Take a man with you.