Hi David,
I'd definitely recommend you have a dabble.
It's a very rewarding hobby on a number of levels, obviously especially so if you love music.
You can spend as much or as little as you want.
Many start off modestly and just go where the journey takes them at whatever pace.
You meet some great people on the forums and there's never a problem of where to go for any type of advice.
It is a good tip knowing where to buy vinyl a good local store or trader is a real boon. But there are some good online resources like DISCOGS, for those specifically yearned for items.
As others have said consider a record cleaner either bought or home grown, depending upon your DIY bent.
As you're currently in Blighty it is probably worth considering what you want.
Somethings are more plentiful (and therefore possibly cheaper) over here than over the pond - and vice versa.
Linn and Ariston gear remains widely available for example.
Just something else to consider before the big move.
Good Luck - Keep coming back with any questions, there's plenty of quality advisors here

Cheers
Dave