Which of these 3 boards would be best for gtx 275 sli???????

I have been pondering over changing motherboard manufacturers after having loads of problems getting memory to work correctly at 1066 on my current MB (see sig). I would like opinions on these 3 motherboards and which is more suitable for sli with 2gtx 275's. My main reason for changing motherboards is Memory support at this time but I want to possibly go SLI in the future when my 275 starts to show a little age (1+ years from now)

Which board would you get and remember it is only for 2 way SLI. Also If 8x pcie (on the nforce750a) will not restrict bandwidth to any significant amount on a 275, then I would prefer to go that route because it is cheaper. Also interested on comments of how well each board overclocks phenom II processors. They are listed as follow ASUS M3N72-D, ASUS M4N72-E, ASUS M4N82 DELUXE

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131323

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131367

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131383

I realize I'm not addressing your main question but your 1066 memory problem seems to be very common. A whole lot of mobos that advertise as being compatible with 1066 ram with an AM2+ CPU are not in reality, at least not with most ram brands and amounts. If you look at mobo manufacturers' memory compatibility charts you will see that they will only pass mustard at 1066 with certain brands or not in dual channel or with only 512mb of ram or other such limitations. It ticks me off and I think there is a lot of false advertising going on with regard to 1066 compatiblity.

I understand but when I looked at the compatibility list for the ASUS M4N72-E for example it looked as if there were loads more memory that had been verified by Asus as supported and not knock off brands that you cant find, real brands you can get in stores. Also notice I said also want to go Nvidia Chipset for future SLI.