Hi Dominic,
From a long term perspective, blue chips are the best bet. Take the top 2 or 3 players in each sector for planning your investment.
Look at the financials and pick out 5 to 10 top companies in terms of earnings per share. If you look at the stock market, you will see that every company's price fluctuates between the 52 week high & 52 week low. Lets call this the price range.
Once you have your short list of 5 to 10 companies, buy when the stock is in the bottom half (preferably bottom quarter) of the price range.
You will require a lot of patience and you should wait till the entry price is at the right level of the price range.
Sell when the price goes into the upper quarter of the price range. Do monitor news about your stocks ... it is important to know the good & bad news about your stock, the sector, and the economy in general to remain in profit.
This the simplest fundamental analysis of a stock and ideal for a long term investor. Remember, though, long term is a relative term. For example, for a company like Tata Steel or ACC, long term may mean 1 to 3 years whereas for a technology company or FMCG company the long term would be of a shorter duration.
Hope that this makes sense & helps you.
Cheers
Kuldeep