Hi Jazza and welcome to PiO
My personal advice would be to contact a migration agent, preferably one of those that are recommended by other people on here - Visa Bureau, Go matilda are 2 that often come up and we used Ian Harrop & Assoc, check out
www.ianharrop.co.uk
A free assessment is generally offered on what visa would be suitable and what is required is meet that. If you case seems straightforward then you can do the whole thing yourself which quite a few on here have done. You'll get plenty of help and guidance from everyone! However if you're not that confident then a good agent is the way to go, it will cost you for the agents fees - ours were approx £1600 incl VAT and with or without an agent you wll have all the skills assessment, visa, medical, police check and sundry fees. As a guide our total fees were approx £3500 (cant remember for sure now) for 3 of us however with the recent changes it is likely to be more.
The whole process for us was only 7 months however they are now taking a whole lot longer so if you are thinking of around 2 years time, now would be the perfect time to get things under way as once your visa is granted (assuming you go on a 175 general skilled visa) you will have 12 months from the date of your police checks or health checks (whichever was done first) to validate your visa - that is visit the country for the first time after your visa is granted, you need only go through passport control and out again if you wanted or you could just go for good! You then have 5 years from the date the visa is granted to make the big move.
Wishing you lots of luck and ask away with any questions you think of!
Lyn x