If you're looking for an inexpensive mousing experience, look no further than the OUREA Laser Gaming Mouse. It's totally customizable and super responsive in fast paced FPS games. The price for the mouse alone is a reasonable $20 shipped on Amazon, but if you're in the market for a keyboard as well, the $30 bundle is worth considering.
Overall the GAMDIAS ARES Gaming Keyboard is a decent keyboard for the price. If you're looking for a budget keyboard and mouse combo, it's hard to go wrong for $30 for both. The keyboard has some nice features along with ones that take some caution. Fortunately, the password interfering macros can be disabled with the software.
Sounds great!