Happy Dilemma

I am getting a silver MacBook for Christmas, yippee! My old PC is on it's last legs, it is sooooo slow and there is no way to shut off the flashing red, blue, green, white flashing screen (when it goes on screensaver) so apparently, that means my screen is toast as well!

So now I need to decide which case I want (these are from amazon.com) and I'm having a hard time, they are all so great, so I'm doing a poll! What do you think? Which one should I choose?

So far the polka-dot one is my fav but then I saw this cool striped one as well!!

I love the graphics on this one but there's no yellow in it :(

This one is cool too but it's got a white background and I'm worried that it'll get dirty quicker!

Love this black and white pattern but I thought I should get a colourful one cause I'm a colour gal. . .

So tell me my sweets, which one shall it be?