its not a 761, but the new asus a7v266 has the new revision of the kt266 chipset which is probably going to be faster then the current amd 760 chipset
but the reason i mention it is because it has agp pro and it has 3 ddr slots.
you will find very few amd 760 boards that have more then 2 ddr slots, and the few that do require registered ram to use the extra slots. for example the abit kg7 has 4 ddr slots but it needs registered dimms if you want to use more then 2 of them