I don't have a ddr system so i can only give you what I "hear".
First, i would wait until asus and abit come out with their mobo's with the via kt266 chipsets, then compare them to the amd760 chipset-based boards.
But, right now, the asus a7m266 board seems to be the best.
Although, it doesn't have any multiplier dipswitches which sucks if you want to overclock. That's why i didn't purchase that board.
If you get the asus a7m266, you should get the 1.2Ghz with the 133/266 bus. It's the "c" version of the chip.
The "b" version is set at 100/200, but can be unlocked, (but not on the asus a7m266...bah...no multiplier adjutments...) to run at 133/266.
As for ram, crucial (micron) or mushkin.
I wish I had a signature.