No need to crack you skull, if you know an expert trader, ask what broker they use. Use that same broker. I use Forexchief; it was recommended by a colleague who is a serious trader. No issues since day one.How to choose an reliable broker and which is the best platform to trade with.
And what are the Important points that i need to look for in a broker.

Better taking some time doing some research over finding out the right broker and you will not regret for sure.I'm looking for a broker who can provide me with tight spreads and lower commission.
Read several reviews and not sure which broker is good, any suggestions.
Eden10
Interactive Brokers, commission is 0.2 x pip value with $2 as minimum.