Can anyone help please
There is no easy answer to that question. Its all bout risk/rewards. One thing that I can say with some degree of certainty, is GPU mining is not the way to go. Asic miners are what are most cost efficient .now. You will need to spend a good about of time on this forum and some Google time, until you have a good understanding.
Here are a few search terms for Google to see some of the asic hardware that is available and cumming soon. Hang on to your cash, till you have some idea of what your are doing.
bitcoin asic
avalon asic
bitfury asic
KNC Mining Asic
Asic Miner
Butterfly Labs
USB Block Erupter
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