Burning to DVD

So, this is a question that has been asked here, and on other forums a million times, but the answers are never very definitive. Let me ask this question a little different:

I've recorded footage on my Canon Vixia HF G10 camera (before recording, I knocked it down to 7mbps), and I am going to edit it, and put it on a DVD for viewing. I need a menu, chapter markers, and everything you would expect out of a DVD. What is the optimal file to export to before burning it to DVD?

Fom everything I have read, and please correct me of I am wrong, but the highest bit rate that you can out on to DVD is 8mbps (hence the reason I recorded at 7mbps), and of course a little over 4gigs. With that said, when I export, my file size should be in the neck of the woods of that 8mbps, and 4 gigs to avoid compression, correct?

The software I am working with is: FCPX, Adobe Premier Elements 10, iMovie, iDVD, and Compressor 4.

From what you see above, what would be a good workflow to produce the said DVD above? Righ now, my thought is, edit in FCPX, export to the elusive file format, open in iMovie to set chapter markers, then send straight to iDVD from there for the authoring. If anyone can see a better way, please let me know.

Any help would be appreciated.

Thanks!