sugestions for motherboards for core 2 ????

Really does depend on what you want to do with the system.

If you feel like buying a relativly cheap 6600 and overclocking it to x6800 levels+, you want to get one of the intel chipsets, such as the p965(?) or the badaxe board D975XBX. However with these boards even if there are 2 16x or 8x PCI Express slots on the motherboard, you cannot run Nvidia SLI as Intel hasnt signed an agreement with them allowing the implementation of SLI on Intel chipsets. So if you want to run a dual card solution you will either have to run crossfire, or give up ideas of overclocking to the extremes that you have been hearing about (4ghtz +++) as these overclocks are mostly found on the Intel chipsets.

Waiting for the nvidia 590 chipset seems a good idea at the moment as the 590 apparently offers a lot better overclocking capiabilities(sp?) and dual 16X PCI express slots for sli graphics. This is instead of using one of the Nforce4 motherboards, or the 570 chipsets which i have seen being sold online at the moment, as the nforce 4 chipset seems to offer nothing but problems for a lot of people. Just watching the forums you can see a lot of, "[insert nforce4 motherboard name here] doesnt overclock/runs too hot/doesnt even support core 2 duo/etc"