It amazes me the amount of people who claim to be professional companies, employing so and so, and building all the time.
Yet they haven't a clue.
I am only small, at the moment 2 staff, but before I even started them I sought out the advice and services of a HR Company.
I have all the paper work in place as well as updates on how the law is changing, for instance from 2012 employees and employers have to pay into a pension fund, at the moment this will only effect the big companies like OCS, but in a couple of years it will effect everyone who takes on staff and it doesn't matter if they are full/part or casual.
As for trying to get around the rules reguarding self employment, well the taxman will let you put anything on your tax returns, but when they do an investigation, you have to show that they are really self employed, if you fail then the taxman will treat them as staff and will want all the taxes, fees and penalties straightaway.
I when you think it cannot get any worse, these self employed workers will be wanting their back holiday pay plus interest.
If you are going to do something, at least do it right and legal, and when it comes to anything that I am not too sure about or an expert in, then I get backup from the experts.