What is the better choice for me to go. I have a 939 mobo already and am finishing up my water chiller now so time to start getting the prosesser and misc. other parts bought. The price ($320) is the same on monarch for the 150 opty and the x2 3800+ so that is not a deciding factor. I will of course want to OC it for all it's worth All opinions considered and experience with either is greatly appreciated. I am not new to computers or Ocing but am new to both of these processers.