The Asus A7n8X Deluxe and Asus A7n8x-E Deluxe (make sure it is the deluxe board) are both very good boards. I have built 2 systems with it for myself and countless others for other people. The only problem with this board is the post voice is on crack and will sometimes report problems that don't exist. It is very easy to turn off and doesn't effect anything.
Asus makes very nice motherboards - I've built a lot of systems with other boards abit, biostar, FIC, but my top 2 choices are Asus and MSI.