Hi, I'm very seriously considering buying the Zeusminer Blizzard 1.2Mh/s. I've never mined before and have a few questions:

• Will the electricity really only cost a dollar or two a month? That's what it says on the google doc on the sidebar. It uses 15 Watts/second.

• I'm not going to have access to the miner for two months in the near future. I may have someone who is able to check on it once or twice over that time. Is it safe to just keep it running for two months straight?

• The chart comparison on the right also says my ROI will be in about four months. That sounds... Very good. Does that seem to be accurate?

• Do I need anything else? I have a Macintosh desktop with a USB port I can plug it into, and wifi. It says it comes with a power adapter.

Thanks!