Okay so I'm doing quite a bit of stuff and have a little lag (4GB of RAM right now). What is Wired/Active/Inactive/Free RAM? I ordered another (2x2GB) of RAM which should be more than enough for how I use my iMac...but I was just wondering what Wired/Active/Inactive/Free was. What is this LG/CD modem? I don't have one but it's showing up. Any ideas?