watch out

Dell is very smart: for every ad they create there are some coupon codes. For each of their affiliates, they have some coupon codes.

Usually, some coupon codes looks quick attractive : $750 off; however, the price is doubled for the item you want to upgrade.

What I do is to compare the price for the system I build from each affilates site and pick the cheapest one.

Here are two sites I used the most: dealsea.com & deals2buy.com