I've been thinking of doing an upgrade to my Socket 939 processor (i.e. new processor and GeForce 8800 card) to try and extend its life for another year or two. I've discovered that the AMD Athlon 64 X2 4800+ Socket 939 processor is out of stock at all the major online retailers. Are all the 939 processors out of production already? Perhaps I just need to plan on a new AM2 system sooner than I though.