I am first time entrant into online trading. I have bought scrips and disposed scrips having held them for a long term. I am planning to go intraday, and want honest advice which broker would be the best, safest and cheapest in the market. I am M.com, M.B.A with several years of corprate finance experience, I intent to dy my own stock picking. Suggest portals where online feeds are available for stock picking for intra day positions.