Indeed, all good comments above.
Above all else, educate yourself with good, reliable sources as to different strategies. Learn about Dogs of the DOW, Seasonality, Dollar Cost Averaging, Acummulation, Dividend Investing, etc. I run my own educational blog at
http://investorandtrader.blogspot.com/ but it is no means the only avenue of education out there; since I also go with Futures options, which for those without experience can be just a tad risky. There are plenty of good sites, that offer a lot of sound, reliable education for the new investor.
By all means, whatever you do - stay away from pink slip penny stocks!