Ok, I've been shopping for an AMD Thunderbird 1GHz, and I've found a lot of different product numbers... Here they are: AMDA01000-1, CPAMT1GB, 320233T.. Which one do I get? They all advertise as being AMD Thunderbird 1GHz except the AMDA01000-1 one which says it is an AMD 1GHz (Socket A), which I assume is the Thunderbird.. Any suggestions?