Congratulations on the monitor! Do you know which model it is yet? I only ask because in addition to the Six-20 that people have been talking about Kodak also produced a Six-16 version of the monitor. Rather than 620 film, that one requires the larger 616 format which is no longer made, so it would make the camera somewhat more difficult to put back into service (although some DIY'ers have been known to convert them to 120 yeilding a semi-panoramic format - an interesting option if you are the crafty sort). The Six-16's versions do seem to be less common though, so the Six-20 is more likely what you have.
In either case, be aware that one defect for which these old monitors are notorious is pinhole light leaks in the bellows. You can test for this prior to running film through the camera by opening the back in a darkened room and shining a flashlight through the bellows. Look all along the folds of the bellows, especially in the corner creases, and see if you can see any light coming through what looks like tiny pinholes. Unfortunately, both of the monitors I have purchased are riddled with these pinholes and will need to be addressed before I can shoot without light leaks. But hopefully you will be more lucky than I was!