6. Dell Vostro 360
The all-in-one is often overlooked in the business environment and historically that's not without reason. The regularly required upgrade and maintenance cycle PCs of old required didn't really play to the all-in-one strengths and they also incurred extra costs. Modern versions like this Dell Vostro 360 manage to combine the power of a desktop with the space-saving and elegant design of an all-in-one. There's even the option of a touchscreen for minimal extra cost, which makes these an elegant way of presenting information and potentially delivering point of information to the public.
With a second-gen Intel Core i3 2120 processor, 64-bit Windows 7 Pro, 4GB of memory and 500GB of storage, not forgetting that lovely LED 23-inch 1920x1080 display, all in the base machine there's an awful lot to like here.
It may seem a touch more expensive than other plain desktops but remember you get the display included in the price and Dell service too.