Well a cheaper option especially with your current energy cost would be the Hashlets from Gawminer. http://gawminers.com/pages/hashlet-solo#choose-my-hashlet

If you can wait a couple months I would suggest holding out for Bitmain's new miner if you actually want a physical miner.
https://www.bitmaintech.com/productDetail.htm?pid=00020140830074550960Um75pnzg06E3

I'm just suggesting what I currently did and will be doing.