can someone explain LTD to me i aint a clue

It can be complicated or easy. It depends who is advising you.
Your accountant will probably want to make it sound very complicated and difficult (so you'll need to pay extra for his services!).
In a nutshell, A Limited Company is an entirely separate legal entity. It is
not you.
You dont 'own it'
'It' isnt yours
You are an employee of the Ltd company (even if you own 99% of the shares in it)
'It' pays its own tax.
'It' has its own Public Liability
'It' can go bust....and leave you free of debt - just like if you bought shares in M&S and they went bust, the bailiff wouldnt chase you as a shareholder for debts.
'It' can pay you a dividend each year (which is taxed lower than PAYE)
'It' still has to pay tax on its turnover (so strictly speaking, Poleman is incorrect when he says he draws 35k tax free)
The simplest way to think of a Ltd company is your child turning 18. Legally, you are no longer responsible for them, (but in reality you probably still control everything they do!)
Do a quick google search or a 'wicki' search for the finer details.