I missed the part of your original post about your present mobo. IIRC, I have the same one in my son's PC.

I think I would just keep saving pennies till I could afford the Oppo and not bother with the HT PC, then all you have to do is upgrade the receiver

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70