greenbrucelee

its upto you wether you oveclock or not, the only advice I will give you is to get a better cpu cooler and what is your power supply wattage as you need to make sure you have a decent one.

crossfire is 2 ati video cards (the same type) linked together to give twice the graphics processing power, well thats the theory anyway. It doesn't always workout how people think it will though.