Mining for Bitcoins with a GPU or even dozens of GPUs will soon be a total waste of time and energy.
It already is after yesterday. People are jumping on Litecoin like ethopian children on a loaf of bread.
Don't confuse him with Litecoins, let's stick to Bitcoins.
What is Bitcoin? An new (four year old) peer-to-peer form of "money" that is outside of most goverment control and all central banking system control. We just passed the point where one half of all the Bitcoins that will ever be created/mined have been mined. The other half will be created/mined over the next few decades.