i want to buy a nikon D90 kit from a good place. i have been looking at adaroma, ebay, B&H, amazon. which place would give me best value and best price. i can compare all the packages but i would have to make a spreadsheet. also i am looking for some good web sites for help on learning and understanding photography. i have a small head start because my wife is already doing photography in school. looking for some advice on it.