also, there is simply no reason to buy a 3700+ , i've completely ignored it, it's a newcastle, you simple gain performance with dual channel when comparing newcastles.

how on earth can you complain saying 939 is not worth the performance/price, when a 3700+ is quite a bit more than a 3500+ and will clock the same, but one will have more performance from dual channel. I can't see any logic there at all. If you were to even think about a 754 its only even remotely worth it if you can find a 3200 or 3400 clawhammer.