Yeah, I know, what does this have to do with MacBooks? Well, since getting the iPad and a Droid phone, I've neglected my late '08 unibody. Over the past couple weeks, the charm and functionality of my Mac has made me realize just how much I love it. There's just nothing quite like the feel of this trackpad and with the SL update, it's as fast as needed for what I do. Couple that with what I think is the perfect size for any notebook (13"), and it's hard to deny the beauty of this machine. It's been a while since I've kept up with improvements for the unibody. I bought the new OS, but haven't paid much attention to tweaks and things. Looking at the store occasionally has left me thinking there isn't much of a hardware jump between my 2 year old Mac and the new ones. Anything I should be doing to improve battery life, speed, etc.?