https://enshop.bitmain.com/product.htm to purchase the most efficient miners on the planet. For a noobie I would 100% recommend the "ANTMINER S7-LN with power supply" because it comes with everything you need (except some little power cord for the PSU) and is very cheap, good efficiency and also very silent. That PSU alone is worth $180... They also run THE ONLY legitimate cloud mining service as well, which is my personal favorite,
https://www.hashnest.com/ I will never pay $180 for that piece of crap PSU. For that amount of money, you can buy a nice EVGA 1300W PSU. Again, the PSU on the Antminer S7-LN is a craptastic piece of garbage, you would do well to replace it right when you get it. In fact, you should just buy a regular S7, take out a blade and sell it, you will get much better value.