Imagine you're deploying new PCs around your small office. Most are standard midtower desktop systems, but your top executives want something sleeker, and a few front-of-house personnel need space-saving systems to preserve precious desk real estate. Wouldn't it be great if all these computers shared the same configuration? That's precisely the idea behind Dell's OptiPlex GX620 business system. While our $1,723 review unit included a 17-inch flat panel and came housed in a small-form-factor case, the same configuration is available as a desktop, a midtower, or an ultra-small-form-factor PC, the last of which comes in a slim, upright case that reminds us of the tiny Dimension 5100C's. With a few exceptions, you can configure each type of system with identical features.