I'm fairly new to the forums so bear with me if you will.  I'm looking for, and not finding a mod that will alter the scale (size) of bags.  Bartender does a fine job of scale change for the icons, but I need something that can do that with the opened bags.  MovableBags is wonderful for putting them where I want them, but if they cover my entire screen, it's still impossible to use.

So 1) does anyone know of a WotLK compatible mod that will do this or 2) is there a reliable resource I can use for a reference to write such a mod for myself?  I appreciate all helpful comments.

Macaroon extras (you'll need to install macaroon as well) allow you to scale your bags.

It's downloaded at wowinterface.

Once you've installed both macaroon and macaroon extras, right click on the minimap menu, select main menu, and there should be an option there that says something like allow macaroon to adjust bag. And at the bottom there is a slider for bag scale.