Cheers Andy!
I've had a look for welding courses and there doesn't appear to be anything local to me unfortunately, the closest was a good hour away which is not really ideal after a hard days work.
I do however have the Haynes 'Welding' book which has been read several times cover to cover and have also been scouring the mig-welders.co.uk forum for useful advice of which there is loads.
I guess I'm just going to have to put in plenty of practise till I get the hang of it.