I'd like a little better understanding of my memory usage. I go in to Activity monitor (or use a widget) and see "wired," "active," and "inactive" What does each mean? For instance, currently I have Dashboard, Firefox, and Quicksilver running and here are the results: Wired: 229.26mb Active: 388.96mb Inactive: 631.56mb Free: 797.59mb I'm using 1.2gb of memory and that seems like a lot. Now I do have alot of widgets, so I could try disabling some. However, right now, I'd just like to understand what all the memory readings mean. Thanks.