You can open account with Oanda for as low as 1$. Oanda charges as low as 1 pips for the Eur/USD pair. FX market is a 24hours market , but the different London, US trading session timings are important to know.
They will send you an autorization form and you need to print it , fill it, scan it and send back to them... also they ask you to fill W-8BEN form which is a declaration that you are a foreigner and pay taxes in your country and not liable to pay taxes in US... thats is...
watch out for indian markets and my current forex profit is 0.35%... please get some basic knowledge about forex first... I would not recommend to trade it as its highly based on speculation... I get frequent information from my friends in US so its not all that tough for me..