Maingear Alpha 24
The Maingear Alpha 24 came in third on our Top 100 list. The machine's massive chassis accommodates a GeForce GTX 680 video card, a Core i7-3770K CPU, and up to 32GB of memory. You can play today's triple-A game titles and upgrade every major component to play tomorrow's attractions, too. Simply put, the Alpha offers unprecedented performance and upgrade flexibility for an all-in-one PC.