I understand the different manufacturer's listing their products for sale is something to your research. I have noticed these electronic units on the big store shelves at great discounts. There are the actual website's that offer their unique brand of units. The Dell website has a large stock of units to look through when your deciding on your next computer. You can find dell home coupons to give you extra savings on certain items, that enhance your Dell's quality performance. Click on the above link and see what they are offering you on this month's sale items.