Abit AX8 3rd-Eye
Out of these three, the AX8-V is the cheapest and the 3rd-Eye is the most expensive costing $152. The AX8 is your best buy because it is $130 and it has great features and sports a great price: performance ratio. Comes with uguru ocing utility.
MSI K8N Neo4 Platinum
This is a good board, but it doesn't allow for the best ocing like Abit boards since it does not come with a Windows ocing utility. This board costs $180 and has a decent price: performance ratio.
I don't know the exact model, but this is a good board also. You should choose the ASUS board or the Abit AX8, the 3rd-Eye would be great also.