I have tried to do a lot of research and used calculators etc, however there is a lot of guesswork and I would appreciate more informed opinions.

With ASICs on the horizon - If I were to invest in GPUs:

1) Am I likely to get at least my money back?

2) Are there realistic options in Alt currencies that the GPU could be useful for vs ASIC - can ASIC at this point or in the near future be used in Alt?

3) Are there any realistic ASIC options at this point, all the sellers seem rather dodgy to me?

4) What other angles could I look at other than actually buying Bitcoin of course?

Feel free to add any other pearls of wisdom that spring to mind...

Thanks for your time.