once again first question is what does power cost you.
here is a piece of gear on ebay it is an antminer s-3
http://www.ebay.com/itm/Free-Shipping-Bitmain-Antminer-S3-Bitcoin-Mining-ASIC-441Ghs-5-BTC-Miner-/281615226727?pt=LH_DefaultDomain_0&hash=item4191935767
it is 115 free shipping it needs a decent psu this psu runs 3 of them
http://www.amazon.com/EVGA-SuperNOVA-1300G2-ATX12V-120-G2-1300-XR/dp/B00COIZTZM/ref=sr_1_1?ie=UTF8&qid=1425311433&sr=8-1&keywords=evga+1300
so if you have cheap power the above can make some money. if you power is not cheap you will most likely lose money. by cheap under 8 cents a kwatt