I don't own any of those Dells but I own the Asus Eee 1000HE. I love mine and would highly recommend it (see this thread for pictures). The reason I chose the 1000HE is because of it's amazing battery life (7+ hours), even though it has a high capacity battery it doesn't stick out the back (like some other netbooks with 6-cell batteries), the chiclet style keyboard is really great for a netbook, uses the new Atom N280 1.66GHz 667MHz FSB CPU, has 2.4GHz 802.11n Wi-Fi, Bluetooth, LED backlit display, and 160GB hard drive.