[AAR.oner]

thats a fairly in depth question Nosaj...additionally, you should really take some time to read thru Vegas' manual...also search for some of the Vegas online forums...but here's a quick overview

import both yer audio & video footage into Vegas...drag the video to the timeline, do the same for the audio...i usually find a few places where a noticeable drum hit or guitar strum occurs and sync to those points...if you run into issues with video speed & audio speed not matching thruout, you'll have to cut the video in spots & re-sync...

as for menus, you can use photoshop to create yer backgrounds, and then import those into yer DVD authoring program to make the buttons & link everything together