Not sure if it's already been discussed, but I hadn't seen a 2100 combo up recently so hopefully this is helpful.
http://www.frys.com/ads/page7
Motherboard is MSI H61M-E23, bundle is 154.99 - 25 MIR = $129.99
http://www.frys.com/ads/page7
Motherboard is MSI H61M-E23, bundle is 154.99 - 25 MIR = $129.99