The specs you want, tend to make the board worse. Sound on board is always crap & slows down your processor. Also to have onboard LAN isn't the smartest thing.
However you I don't find ECS products too good, so wise choice staying away from them (I mean, they are ok, but just not as good as other companies).
This subject has been hit a few times, but anyhow, I think better than me & other giving you advice, best to go to this place:
h**p://www.amdmb.com
& look for what you need there. Also check out their forum. I also help out there (different name ofcourse), but you will get the best info there to make your own informed choices.
Good luck.