Welcome to both of you!
This amazes me about 'shooting sports' they are almost the best kept secret, most newcomers have no idea where that can shoot or even where the shooting grounds are, plus almost every Fullbore Club I know is full to bursting and memberships are on 'hold'.
It's almost a underground sport, yet one of the most tightly regulated and legal pastimes in the UK.
Years of bad press and negative ill-informed public opinion has not helped our sport! I am only glad forums like this exist to spread the word and knowledge as well as bringing knew members into this fabulous sport!
I have never taken anyone shooting who hasn't massively enjoyed it, it's impossible not too!
As Kevin (Beer Hunter) said, there is no requirements to be met for a Shotguns Certificate (unless you are a habitual criminal). I would apply as soon as possible, then when you know what gun you want - you can get it immediately!
Enjoy
Dave