Hi,

As a long time Bitcoin Miner.  I would like to clarify the Mining portion of this thing.  At 120 GHS you will not be mining Bitcoins per se.  You will be mining Satoshi's.  Big, big difference.

To recieve even .1 Bitcoin per day takes about 15 THS at current Difficulty.

Standard Bollinger Bands model Bitcoin really accurately.  As volitility increases. The price action begins to poke through the Bands.  As this continues, prices begin to collaspe then make a trip to the bottom band.

You just figure out were price is in this cycle.  Then you will know if its buy or sell time.