There are quite a few deals with $20-$25 savings:

 

http://www.newegg.com/Product/ProductCombos.aspx?Item=N82E16819103698&SubCategory=343&SortField=0&PageSize=10&page=1

 

I picked up the Sempron 140 with Asus M4A785-M. (Although this motherboard is not on the hardware list, it uses the AMD 785G and SB710 that is also used by the Gigabyte GA-MA785G-UD3H that is on the list, not to mention two other motherboards with AMD 710G and SB700 that are on the list.) I will report back on compatibility.

I think you chose the best one out of those options.  The ASUS M4A785-M has 6 onboard SATA slots, one PCIe x16 and one PCIe x1 (so potential for 16 drive support), onboard video, gigabit LAN, and is microATX.  It would also work well as an HTPC should you ever decide to repurpose it.  Definitely a good deal at $91.98 for the combo.  I don't expect you'll have any compatibility problems.

There are quite a few deals with $20-$25 savings:

 

http://www.newegg.com/Product/ProductCombos.aspx?Item=N82E16819103698&SubCategory=343&SortField=0&PageSize=10&page=1

 

I picked up the Sempron 140 with Asus M4A785-M. (Although this motherboard is not on the hardware list, it uses the AMD 785G and SB710 that is also used by the Gigabyte GA-MA785G-UD3H that is on the list, not to mention two other motherboards with AMD 710G and SB700 that are on the list.) I will report back on compatibility.

 

Please take time to do the level 1 certification so it can be added the unRAID Hardware list.

 

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131595