for stock speed operation even the cheapest Athlo64 motherboard with your required functions will do.
There is not too much performance difference between the motherboards as such when it comes to AMD A64.
There is no point in going for more expensive MSI when you can have something like ASROCK SATA II or even A8N-E a lot cheaper and you can add SB live 24 bit to that.
Decide the feature set you want and but the motherboard.
And honestly DFI is waste of money if you dont wana overclock. But yeah DFI got everything, features, performance, looks, everything.