Welcome Mark
I have been collecting £2 coins as well, and only just recently in an active manner. As smoke mentioned one thing you can do, if you want a circulated Jane Austen £2 is go to the Bank and withdraw £X in £2 coins, then go through and see if you get one. This can be a long process though and of course the chances are slim you'll find one, but this is how I got 6 commemorative coins I needed in two trips. Hope this helps.