As you no doubt know, Folder space Pie Chart programs are prevalent, but I'm hunting for a program (or could be a
Process Tamer feature, Mouser...) that will draw a
pie-chart for
memory usage per process / application (with or without System Idle Process). I think the whole world and his/ her dog will appreciate this one...

Maybe have F5 as a refresh hotkey? Sound good to you?
I'm sure it must exist somewhere (I can't be the only one to have thought of it!) So has anyone found such a program?
And there must be other system aspects crying out for similar process-charting. Eg. bandwidth. Sound good to you guys? Any more ideas?