I have good capital. I want to setup gpu mining at home. My questions are.
1.How to you mining at home?
2.Which coin is good to mine?
3.How can I choose a coin myself in future?
I am afraid you need to do some more research on mining before stepping in. GPU is backdated now and you will not be able to make any profit with it. If you are eager go for the ASIC hardwares. Before that I think you should study more on the subject so that no one can fool you.