Gaming Computer with a budget

[ExoticBud]

You can build a moderately powerful desktop pc for $300, not a gaming pc that can run the latest games reasonable.

http://lifehacker.com/5840963/the-best-p...0-and-1200
Which means, go for an AMD cpu with a build in graphics card, stuff it in a cheap case on a regular motherboard.

Since you are probably using a desktop pc right now, why not look into upgrading that one? Adding an SSD can help loads, add a better GPU and you're on your way.

Looking into this

Any other options?