Whatever you end up with, be sure to account for shipping costs and sales tax when calculating the total cost.
Dell in particular really seems to hide some of the cost in their shipping fees I've seen them go as high as $100 for desktops.
Also, many companies put on partnership promos, where you get $100 off (rebate) of a printer with the purchase of a computer. I know Apple just about always has these types of special deals. They also don't charge for shipping.
good luck!