I know what you're thinking "RAM Disk? Doesn't OS X's underlying Unix structure alleviate that archaic practice?" Well maybe but the only entry into the X RAM Disk field, ramBunctious, has this to say: Hmmmm interesting. I used to use RAM Disks in OS 9 to store browser cache in RAM instead of on disk with IE, but Mozilla in X can store cache in RAM and on disk. So I really don't use RAM disks with X. But for you laptop users out there, the increased battery life sounds interesting. Any comments welcome on RAM Disks. I have lotsa RAM and I am always looking for ways to use it more effectively.