Is there a way to connect two macs to a single cinema display? Of course I won't use them at the same time, but I want them to be connected to the display.
At work, we refer to such devices as "switch boxes," though it appears that "video switch mini displayport" pulls up what you're looking for. The following appears to be what you're looking for:
Of course, you're just interested in sharing the display, but it does have a built-in USB hub, in case that's needed. It has a good desktop footprint, as well.