Back in March, Maingear entered the world of the all-in-one PC with the utilitarian Solo 21. Even though the unit is now only five months old, it's being replaced with a model that's more attractive, more functional and that carries a lower price. We're most excited that the redesigned Solo 21 is now fully upgradable -- and yes, this includes the Mini-ITX motherboard itself. Available from $899 on up, the baseline configuration includes a 3.3GHz Intel Core i3 2125 CPU (Ivy
