mik1973
1 lot on the EUR/USD is $100,000 or $10/pip. 1 mini lot is just 1/10th of that.
Have you looked at the T2W beginner's guide to Forex? Do as much reading around as you can and have a play around with any of the various demo accounts on offer (FXCM, Oanda, CMS-Forex etc) - you'll soon get the hang of how it works. Also I went to a free seminar at FXCM last week - they are very helpful bunch of guys who are happy to talk to you whatever your level of knowledge. I am certainly not an expert as I have only just started looking at forex.
Red Eye
I would say that 4 months is probably not long enough to achieve what you want. '3-5 years of 12 hour days' according to one trading expert, unless you have a very good teacher/mentor is perhaps nearer the mark. However, if you are cautious, and only trading with money you can afford to lose, then go for it - you'll never know unless you try.