We are PADI divers, and we dive in the UK with our dry suits as there are cold waters around here but also abroad where you feel a heavyweight has been taken off your shoulders, literally.
Planning a trip in the UK
For sea diving is a different matter. Contacts:
Shopping/Servicing
A few places to buy online like gloves in Kubi, etc
Or to get in person, also to organise local trips like Robin Hood (dive club)and Scuba Leeds
Diving magazines
There are also a few interesting magazines around.