I am putting together a video editing rig. After doing a fairly exhausive comparison between boards, I've decided to go with the Matrox RT2500. Everything I've read recommends going only with the certified equipment from Matrox when putting together a machine. Unfortunately, none of the KT266A boards have been tested yet. The Asus A7V266 (KT266) is approved, however. So is the Gigabyte GA-7DX (AMD 761). Will there be a significant difference between either of these boards and the KT266A performance? Should I hold off until they are able to test the newer chipset, even though it could be months before that happens? Any thoughts would be greatly appreciated!