Some cool/funny sports commercials:

Nike Freestyle Soccer (These are all real moves... no computer generated images!)

Nike Secret Tournament ( Awesome action, awesome music and three minutes long... this one is da bomb! More about it here and here .)

Ali G stumps Kobe Bryant (Respect!)

Here is a collection of some really good Nike commercials on iFilm.com (I don't know anything about iFilm but it came up when I Googled "Nike commercial". Sometimes it's finicky and won't load after you hit "watch" so you have to close the window and hit "watch" a second time. Although I haven't looked at them I'm pretty sure they're all "G" rated since they're TV commercials. Enjoy! )