Buying keyboard and mouse
Buying keyboard
Find out what you want on you keyboard? Mybe some extra buttons or shortcuts or even a mini LCD monitor. Midi keyboard Today we can find also a different kind of keyboards: ergonomical, they are suppose to be better for our hands, try one in your nearest computer store.
Price often shows the quality of the component. But do not buy what you dont really need. Ergonomic keyboard.
Also watch out that your keyboard is compatitable with your system trough USB or other connectors.
Buying mouse
Buy an optical or laser mice. For those who are in fore some serious gaming i would suggest a laser mice, for others optical because it is less expensive but enough good that you wont see the difference
Compare prices, and the number of buttons is your choise.