I have recently started to trade in the evenings (6 months ago). I have always wanted to become a professional, but couldn't afford to loose my monthly salary. After trying lots of different systems and strategies I eventually came across Markets Mastered from a search on Google, I purchased the 'Trade With A Day Job' manual (I think that is what it's called) and now get home around 5pm and trade in the evenings till about 9pm. The published number of pips that can be earnt in the evening is 20, and I hit that target around 90% of the time in a month, trading at £10/pip.
The manual is well laid out, tells you everything you need to know as a beginner, and Nick (the author) offers unlimited email support for any questions you have. He also recommends you paper trade until you can successfully enter and exit trades, which I will second, but with no real experience I was trading with my real money just under a month from purchasing the system.
In the next year or two I was planning to cut down my hours at work and trade with another system authored by Nick, whereby you can trade at any time of the day (or night apparently).
Hope that helps.