Actually, the solution was staring me right in the nose. On the Install the print driver dialog box, click the Windows Update button and Windows will automatically grab the driver for you online. It works great.
Speaking of hardware, Windows 7 has a new center for interacting with gadgets like printers, phones, and music players. Surprisingly, there are already a few dozen products that work with the Device Stage. To see if you already own something that will "light up" Device Stage, check out the Windows 7 Beta device list.