Adorama is a computer shop in NY. These guys are really great as far as pricing and their collection. Not only do they sell new equipment but used as well. They also rent out stuff so you can test it before you buy. I use them all the time.
They just came out with some guides you can use to give you a few pointers for photography. They can be downloaded from this website:
Adorama Learning Center: Photography eBook Collection
Enjoy!