What I don't get is why just having iMail and Safari open it uses 1 GB, of my 2 GB ram. That doesn't give me a whole lot of room to have other apps open does it? I guess it was like that in Tiger, I never noticed.
You are right. I found that iStatPro shows I am using almost a whole GB of memory when iMail and Safari are open. I am sure the widget page takes some memory also as I read the iStatPro widget, but . . . . that much?
By the way, I don't have any of the other problems you cite.