CMS-Forex interface is excellent. They have a really great range of indicators and overlays. The fibonacci retracement is one of my favourites, I use it all the time, and each time I'm shocked at how well it actually works. I also use 2 MA's, RSI's and Directional Movement Indicator (DMI) and take notes of the previous days highs/lows/close and calculate the pivot points and upper/lower support/resistances.

Put all this on an hourly chart, and oh my god! It tells you when to get in and out of every daily trend for around 300 pips a week. Pull it back to daily, and if you've got the initial capital to take a 100 pip hit, you could be taking 2500+ pips a month.

As McDonalds now say, I'm Lovin' It!!!