In the near future (probably in the year end sale season), I am going to buy a Dell laptop. Problem is, I am completely pissed off by Microsoft Windows 8, which is almost universally pre-installed in Dell computers. I've heard that there are some desktops/laptops that you can buy from Dell with Ubuntu pre-installed. But, I didn't find such desktop/laptops in Dell official site.

Where is the access point to buy the desktop/laptop from Dell with a pre-installed Ubuntu system? If Ubuntu is not available, could I buy a Dell computer pre-installed with Linux Mint?

Looks like there is a Dell Inspiron 15R (N5110) equipped with Ubuntu LTS12.04, but I didn't find it in Dell official site, and don't where to place the order.