AoOs's Journal: Laptops without pre-installed OS ?

I've always been a desktop-kind of guy, laptops never really was my thing.
Since I've always build my own computers, laptops never really was an option: Buying a computer that I can't hardware upgrade ? No way !

However, processing power and good design (for windows-based laptops) has greatly increased over the last couple of years, during which the cost has dramatically declined, so I've changed my mind. This has caused my to do some research and I've found what I'm looking for.

During my soul-search, deciding what I wanted (OSX, Windows, Linux), one question came to mind:

Where can I find laptops without any pre-installed OS ?