You will see a lot of Intel motherboard clearances in the next few weeks. All of them are focusing on getting out the Conroe supported motherboard product as fast as possible.
The 965 and 975 Intel chipsets are the only ones which can support Conroe. NVidia and ATI are trying to get thier chipsets out to support Controe as well.
I just cannot see investing in a Prescott CPU, unless Intel really drops the price on them.