If these are small drawings that don't change, then of course inserting .jpg's or .png's is a good way to go. Include some shaded views if you have a solid model, for clarity.
Proud Member of the Reality-Based Community..
[green]To the Toolmaker, your nice little cartoon drawing of your glass looks cool, but your solid model sucks. Do you want me to fix it, or are you going to take all week to get it back to me so I can get some work done?[/green]