Hey just thought i should post some cool stuff you can do with your mac that you may not know about :cool:
Making your whole screen negative:
press ctrl alt apple 8. this makes your whole display go negative! to change is back simply press the buttons again. Its quite useful to see text if you can't really see it or just to make your screen look cool!
Zoom into your mouse:
Hold ctrl and scroll in.(either with two fingers on your touch pad or with a mighty mouse!). It zooms your whole screen towards your mouse and then when you move your mouse it follows it too. Simply scroll backwards to zoom back out.
Scrolling through tabs in firefox:
Simply hold apple and press the number of the tab you want to get too!
Have fun!