After spilling coffee all over my really expensive gaming keyboard, I needed a new one and since then I've become unemployed, so I had to make the difficult move to a cheaper alternative. I was terrorfied that my £10 (about $13) budget wouldn't give me a keyboard which would satisfy my needs after owning a £40-£50 keyboard.
However, I found this little keyboard:
http://www.emprex.com/02_products_02.php?id=267It's cheap but the quality is really high. It has full profile keys and anti-ghosting for WASD and the arrow keys as well as a few other gaming keys such as ctrl, space, e,q,r. The Anti-ghosting will help you with issues like this.
The overall quality of the keyboard is great and I was surprised by it. I adapted to it really quickly.
There's only two real issues I have with the keyboard and they are: The volume keys don't "feel" right to me and the capslock key isn't indented on the right hand side which means I often accidentally press it if I slip off the A key.
Other than that it's a great cheap gaming keyboard.
Also the broken English on the box it comes in is hilarious. (I was worried when I saw how bad the English was, but nevertheless it's a great keyboard)