I am building a gaming computer, and my friend suggested that I get the MSI Radeon HD 7870 GHz Edition 2GB Video Card, I'm not the best at picking out graphics cards, and I'm not sure if this is future proof, I mean, its only 2GB, is that good?
It is currently well priced around $150 with rebates and it will let you game with high settings at 1080p.
So it is currently well positioned for the price. 2GB memory on it is sufficient for AA on 1080p.