I configured the E520/E520N. Both had the exact same features (I avoided the promotional upgrade on the hard drive for the windows PC) and ended up with the exact same price. $709 for Pentium D 820, 1GB RAM, 160GB HD, 17" monitor. Interestingly enough, the FreeDos PC comes standard with only a keyboard, the only way to get a mouse is to upgrade to a wireless keyboard/mouse combo.