Since Dell offered me 12 months no interest a couple of years ago and started me off at $5K credit, I became 100% Dell.
My desktop is a Dell XPS 410 (Core 2 Duo 2.4ghz, 2gb ram, 512MB nVidia GeForce 7900 GTX, 250GB SATA 7200rpm) - run Windows XP on it, used mainly for gaming.
My laptop is a Dell XPS M1530 (Core 2 Duo 2.6ghz, 4gb ram, 256MB GeForce 8600M GT, 320GB SATA 5400rpm) - run Archlinux on this, my main workstation - browsing, programming, working on my site, homework, and some gaming with wine).
My travel companion (as of Monday :-)) is a Dell Mini 9 (Intel Atom 1.6ghz, 1gb ram, 8GB SSD
) - will be used for school, chatting, music, bed companion lol - don't know if my girlfriend will allow me to go that far though!