Ok i am just starting to get into this 64 bit cpus that are out now. I am running an AthlonXP 2400 which has served me well in the past. I now want to get something better. But i dont really understand all the 64 bit labels. For example a AMD 64 bit 3400+ say is only running at the same clock speed as my athlon XP 2400 at aroung 2GHz. And pentium run much higher at 3 plus. So should i get a pentium than as they are higher clock speeds. Also is the sempron CPU any good say the 3000+ or 3100+. Is there a guide on the net that will tell you the best 64 bit chips to get. There are so many out, and i dont know what to look for.