Ok, so I'm not even sure this would be worth doing but I figure it's easy enough to ask the question. So I have a 2Ghz Core Duo MacBook and the RAM has been maxed out (2GB) so increasing that for a speed boost isn't an option. I was thinking that maybe upgrading to a HDD/SSD hydrid drive would give me a nice speed boost. I decided against a solely SSD drive simply because of the cost. Currently I have a Samsung HM320JI in my MacBook (5400rpm, 1.5Gb/s), and was thinking of replacing it with a Seagate ST95005620AS (500gb 7200rpm HD/4gb SSD hydrid drive, 3.0Gb/s). What kind of performance boost would I see with that? Also, with drives like that, they're meant for you to just install the OS (and maybe a couple important applications) on the SSD, right?