Apple Annie- Your post is somewhat confusing.
“I was just given some footage that was shot HD 16:9. I have a HDV camera that I can use to capture the footage..”
I will make the presumption that you were given an HDV tape and you want to plug the tape into your HDV camera and down convert it to SD 4×3. If the tape was shot with the same HDV format as your camera and your camera is Sony you are probably in luck. Plug in the tape and go to your menu and set the ilink convert to the desired downconverted format and then set the downconvert menu item to Squeeze or Edgecrop (which ever works).
Hope this helps.
Jerry
G5 Dual 3GB Ram
FCP5 Studio
External 1 TB SATA Raid 0
Kona LH, Second system w AJA ioLA
Sony Z-1