So I've had my macbook for a few months now and it being my first mac, I'm not sure how to best set it for optimal performance. It's the 2ghz CD with 512 mb RAM, which will hopefully be upgraded soon. Being a user of windows for most of my life, I just don't know what to do with my mac to make it perform at it's best. On windows machine's I'd clean the disk up and all that other stuff...any help would be much appreciated! While I am happy with my mac I don't see the $1,000 difference between it and my old laptop at this point. Oh and where should I go to get my RAM upgrade?