How to customize your computer?

hi every1 i would like 2 know how 2 change my screensaver n move my desktop icons ect u know make it different from ever1 elses computer. i have a acer aspire 1 laptop n i wanna know if there is n e free websites on how to do all of that stuff n if u know how 2 do sum of these things please list ur answers n steps plz n thxHow to customize your computer?
You can use the RocketDock for your icons

http://rocketdock.com/

And, get some great wallpapers from here:

http://www.desktopnexus.com/



Here's my desktop:

http://img10.imageshack.us/img10/8683/11