Is 24GB of DDR3 RAM overkill?  I have one of the old-school Core
i7-920s and currently have 6GB (3 x 2GB) of DDR3 RAM running at
1600 MHz. I was wondering since prices are so cheap now, if I
should just get 6GB more for a total of 12GB or just get 24GB (6
x 4GB). Or will that be overkill?  I often use about 70% of my
RAM with my browser, mail, and all my background apps running
(online backups, media streaming, etc).  So with 12GB, it would
already drop to about 30%. With 24GB, it will be like 17%.
Anyone here use more than 12GB in their system? Do you see any
benefits to all that ram?