Your Mac slow? Disable Spotlight in Snow Leopard

For some time now I’ve experience my mac to be very slow. Opening Vim would take minutes. Creating a new Tab in iTerm would take more than 20 seconds. What the hell is going on - this is a brand new MacBook Pro! ~ After investigating, using Activity Monitor I discovered the following: CPU’s idling at 3-5% usage +500M free RAM +200G free disk space Negligible amount of network traffic Very high amount of disk I/O writes (> 450w/s) What’s causing disk I/O?