Which is the best trading platform for amateurs?

MetaTrader4. It's very popular, has lots of plugins, user developed custom indicators, dedicated forums, even expert advisors that can auto trade for you.You can download a free copy from here => http://fxcast.com/?pr=20280FXcast Pro is a rebranded version of MetaTrader4 and the demo account lets you practice trades with virtual money.

There's some good info on this site -http://forex.webexpresslane.com/forex.html.