I checked your link to the other post on insanelymac.com. For me the EX58- ud3r mobo works. I do have adobe cs4 working on it, and I import DV through the firewire and use Imovie 09. Everything works on mine, sound, ethernet, GTX 260. I even added a Highpoint Rocket raid 2320 card for my windows7 SSD RAID0 and 4 640GB RAID5, and have a RAID0 for mac using two SSD's for Snow Leapord boot, and a 1TB for MAC storage on the Intel ICH10R chip. Total of 10 hard drives on this mobo with two OS's running smooth with Empire EFI, at 4.1GHZ, and 6GB of 1600mhz OCZ. It works so well, I just bought new parts from newegg.com and going to build one for my sisters family minus the two raid setups.