If somebody knows a good internet computer shop, please write here. I need to know what prices are, I dont want to buy computer through internet website.

Newegg is where I've bought all my stuff from in the last 4 years or so. They seem to have one of the most competitive prices around

Pricewatch will give you comparisons among many sites

Personally, if i was buying a computer on the net., I would buy it from Dell. They will stand behind their product.