I had the same problem awhile back. I had to take over a project from someone who had started it in Final Cut Pro, so all of the files were QT .mov. I downloaded the Calibrated DVCProHD codec which allowed me to view the files. https://www.calibratedsoftware.com/QDVCProHD.asp
You can download a free trial to make sure it works before paying the $69 to license it.
Thanks John! So, either of those would allow the files to be imported into Vegas without sacrificing a great deal of quality, I assume? Also, of the two options you present, which would you go with if you were in my position?