Try your local craigslist, I picked up an EVGA FTW3 for 60$, just missed a SR-2 with 2 x5650 1000w PSU I think it had 24gb ram all for 600$ in a case.
I have seen at least 2 Asus sabertooth go for 100-125$ but they were an hour drive away and they would not ship.
It is worth a look.
Also on ebay search for Asus p6t and boards will pop up that will not if you search for x58 or 1366 motherboards.
Search for boards by name, like, classified3 FTW3 SLi3 and so on.
Also I have seen boards under the search for intel 920, 930,940.... cpu, boards will show up with cpus that not many people see.
920 combo and so on too.
Edited by bill1024 - 12/5/14 at 6:40pm