I got a good deal on some RAM and upgraded my home machine to 11GB. Noticeable speed increase. Next step will be to re-mirror the system drive; I unmirrored this at the beginning of the year to install bootcamp, much needed game distraction. There was a massive noticeable slow down moving to a single drive, everything took longer to load and the machine felt slower as it spent more time in IO wait, waiting for that slow single HD.