It's a good motherboard but its not out yet. Check out the Supermicro P4SAA. It's supposed to be exactly like the Asus P4G8X. Here is the link to the supermicro website. www.supermicro.com
Sure its out.
I just bought one.
Actually though, I went back to the site today, and it was no longer offered as an option for the system I bought - they had already sold out.