Sav Row makes some of the sickest laptops and desktops around. The London based company will mod or build out a laptop/desktop to your specs. Check out the site and some of the designs. Apparently, some of their units have sold for almost $40k.
This one in particular, the Monza, is modeled after the Italian Sports car; runs for about $3000 (includes matching screen saver). With only 1000 customers the firm will clear $4 million in sales this year.
Check out the article in Business2.0 about them (subscription required for full read).