Personally I use Family Tree Maker, there are others out there but I prefer FTM, I like the charts it produces and its ease of use.
I also subscribe to BBC's Who Do You think You Are Magazine. The cd usually contains some useful information for example a months free access to 1901 census. A month isn't a long time but it can get you up and running.
Also, it depends which area you are researching in. My brother is researching my mum's side of the family who are English however I'm doing my wife's family who are Scottish so the records are in different places.
Also, if there are any adoptions in the family before 1927 it's a little harder to trace as adoption records only started in 1927.
If you click here this will give you a good starting point.
Also, if you click here you will find a few useful forms which help with recording family information.
My last recommendation would be to write everything down, bookmark all sites you think might be useful, even if it's only one thing as it's harder to remember months down the line!!!