Computer monitors are neither one. NTSC and PAL are both interlaced video formats. Computer monitors are progressive scan.

My projects are exclusively PAL. When using iDVD, when I set the preferences to NTSC, it burns perfect NTSC DVDs.

I'm currently in the U.S. with these DVDs and they work fine.

You could timeshift your PAL video to 24p by deinterlacing and remapping the 25 frames to 24p. This would allow you to make a NTSC DVD with 3:2 pulldown just like NTSC movie DVD's. You do loose a little quality because of deinterlacing as well as a little smoothness of motion but it may offer higher quality than other methods.

You may be able to render NTSC from the FCP timeline. I do that in Vegas all the time, and it is my experience that what you can do on one platform, you can usually do in another as well. I prefer doing it in Vegas to working with DVFilm Atlantis because the titles and photo animations are rendered directly into the target format and look better.

Most PAL DVD players will play back NTSC. Only a couple of NTSC DVD players will play back PAL. Your couple needs an NTSC disk.

By the way, I loved DVFilm Atlantis until I got the latest version of Vegas, Vegas 6. Vegas 6 does the PAL to NTSC frame rate conversion from the 50 half fields rather than by deinterlacing the 25 interlaced full fields. This method looks really good. It's pretty much impossible to tell that it's frame rate converted footage. Even fast pans and zooms look outstanding.