[header] How to pimp your mac [title] Change your background. [step] Go to system preferences, then click background and screensaver, click upload photo (or pick the ones already for you). [title] Change the appearance and size of your cursor. 
[step] Go to system preferences, then click accessibility or universal access, on the top there will be tabs, such as hearing, seeing, e.t.c, click on mouse and trackpad. You can drag the size to make it bigger or smaller.