How to save comprehensive parts list for multiple models?

[Derek]

I want to take multiple models in one file (6 of this, 3 of that, etc) and save a big old master parts list that doesn't break it down by model, so that I can buy them all at once. This is a bunch of miniature game pieces that someone designed, and I want to buy enough to play a game with. The problem is that when I save a parts list, it's just one of every model and none of the parts are consolidated (lots of similar parts). Also, I would have to go in and manually edit the parts list by multiplying pieces by how many I need, ad nauseam. I was doing this, until 3/4 of the way through I realized I'd marked a color improperly, and had to generate all new parts lists. Can anyone help me out?

For simplicity's sake, let's say I have 50 different models.
I need 6 of some, 3 of some, 4 of some, and 5 of some others, while only 1 of a few of them. I want a master parts list, all consolidated, that I can use for ordering parts.