The Lenovo ThinkCentre M91p is one of those utilitarian-looking, ubiquitous business desktops that seem to be on the desks of a lot of workers across the United States and around the world. There's a good reason for that: The Lenovo ThinkCentre M91p (which we reviewed in its Ultra Small Form Factor, or USFF, chassis) is a workhorse that is easy to service, easy to deploy, and ultimately a vital business tool for your office workers. It has a little extra expandability to help with legacy projects that require an old-school PCI card slot, but its modern Intel CPU with built-in graphics means it also looks forward technology-wise. It's good enough to slot in as our next Editors' Choice for enterprise-class business PCs, though you can also buy it for medium-sized businesses that are growing.